Rhizanthes zippelii

Last updated

Rhizanthes zippelii
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Rafflesiaceae
Genus: Rhizanthes
Species:
R. zippelii
Binomial name
Rhizanthes zippelii
Synonyms [2] [3]
  • Brugmansia zippeliiBlume
  • Mycetanthe zippelii(Blume) Hochr.
  • Zippelia brugmansia Rchb.
  • Brugmansia bakhuizenii Heinr.

Rhizanthes zippelii is a species of parasitic flowering plant without leaves, stems, roots, or photosynthetic tissue. Its flowers bud out of the roots of the Tetrastigma vine. It is found in the tropical rainforests of Java. The flowers are reddish-brown, with long hanging tips, and are from 12 to 29 cm across. [3] [4]

Contents

Taxonomy

Rhizanthes zippelii was first described as Brugmansia zippelii by Carl Ludwig Blume in Java in 1828, placed in a monotypic genus. [5] A second species, B. lowii, followed, described by Odoardo Beccari in 1868. [6] B. bakhuizenii was the third species, named by Emil Johann Lambert Heinricher after his 1903/04 trip to the island for a taxon with a different flower colour on Java. [3] Bénédict Pierre Georges Hochreutiner recombined the taxon in 1930 to another genus, Mycetanthe, [7] but then a few years later in 1934 Édouard Spach moved the species to another genus, Rhizanthes, as it is still classified in today. [1]

In the 1963 (English version of the) Flora of Java C. A. Backer and R. C. Bakhuizen van den Brink reduced B. bakhuizenii to a synonym of Rh. zippelii. They recognised two forms -somewhat confusingly, perhaps over-modestly, leaving them nameless. The original form described by Blume had only been seen a handful of times; the form with which bakhuizenii was synonymised was found in the most number of places. They also proposed synonymising the enigmatic taxa described by Robert Brown in 1821, Rafflesia horsfieldii , to this last form. [3] In 1988 Willem Meijer and J. F. Veldkamp explained that the difference in flower colour was the result of the normal change in flower colour that the occurred during anthesis -the whitish flower of the Blume form was simply a flower on its first day of opening, and thus found it unjustified to recognise the two forms. [8]

The difference between the two species Rh. zippelii and Rh. lowii had always been unclear -the plants had only been collected a limited number of times, and Rh. lowii had been synonymised with the older species by Hooker in 1873, but this had been generally ignored by most people. [4] In the 1930s the difference between the two species was thought to be the hairiness of the inside of the perigone tube - Rh. lowii being much smoother and less hairy. Based on this character, Rh. zippelii was collected for the first time in western Borneo in 1935. [9]

In order to find a morphological basis for separating the taxa Meijer and Veldkamp used the 'ramenta' - minute stalked outgrowths found on the inside of the perigone tube, having found these useful in differentiating the related Rafflesia . Based on this, the Thai-Malayan population was reclassified from Rh. lowii to Rh. zippelii in 1988, [8] but in 1997 Meijer reassessed them as Rh. lowii again, based on the same character. Bänziger, on the other hand, had been under the impression that Rh. zippelii had a white flower colour (as based on Blume's original account), and Rh. lowii brown, but after reading Meijer's account of the change in flower colour, Bänziger followed Hooker in synonymising the taxa in 1995. As had happened to Hooker, he was largely ignored. [4]

Bänziger and Hansen were unsure of how applicable basing the species on the form of the ramenta alone was, finding the characters were inconsistent and did not clearly separate all the specimens into geographically distinct groups -for example, Blume's type specimen of Rh. zippelii lacked ramenta all together, and did specimens throughout the range, thus they resolved to use a larger group of morphological traits and the larger number of specimens which had been collected since 1988 to clear this up. They found that the ramenta were indeed mixed between specimens, but that the specimens could roughly be split into four 'groups', although some of these groups were only based on a handful of specimens. A number of characteristics were ambiguous, mixed or had ranges which overlapped with other groups, making them inadequate for differentiating taxa. Notwithstanding this, however, they decided to recognised their groups at a species level anyway, reasoning that regardless the phylogeny, it would be potentially more advantageous for non-scientific reasons to recognise them as four rare endemics. [4]

Etymology

Blume commemorated the horticulturist and plant collector Alexander Zippelius with the specific epithet (an eponym), who partially assumed his duties at the Bogor Botanical Gardens in Java when Blume departed for the Low Countries to write a proper flora of the region. Zippelius collected the first specimens of this new species of plant on Mount Salak, not far from Bogor. Zippelius was an important collector for Blume, he died from disease in Timor during a botanical expedition to the Moluccas, western New Guinea and other islands of the region. [10] [11] [12]

The generic epithet derives from the compound of the Ancient Greek words ῥίζα (pronounced rhíza), meaning 'root', with the word ἄνθος (anthos) meaning 'flower'.

Distribution

Due to the taxonomic changes described above the distribution of Rhizanthes zippelii has changed with the change of perspectives. As it is now defined by Bänzinger and Hansen, Rh. zippelii is an endemic of Java. [4] Rh. zippelii was collected for the first time in western Borneo in 1935, but the identification was based on characters which are now disregarded. [9]

Writing in 1988, Meijer mentioned that the plant had not been seen on Java since before the Second World War. He mentions that botanists were likely the main reason for the decline of the species, at least at Mount Salak, the most well-known collecting locality near Bogor. Another reason for its continued absence was the further development of plantations in the area, but he suspected that the main reason why the plant had not been seen for such a long time was that the network of dedicated volunteers taking 'jungle hikes' in search of the flowers had disappeared when the Dutch colonial period ended, as had the Dutch-language journals which published information and coordinated people interested in such plants. Moreover, many of the old collecting localities had not been visited by botanists for many decades. Thus he doubted the species was extinct on Java. He mentioned that the old network was being replaced with high-school students taking such jungle excursions, but that their level of botanical knowledge was not yet adequate. [8] By 2000, it had been found on Java again. [4]

Despite this, the Plants of the World Online database for some reason states that this species does not occur where it was collected from, Java, but that the distribution is Peninsular Malaysia and Myanmar, but not Thailand in between the two countries. [2]

Description

The giant flowers are from 12 to 18 cm when mature, [3] exceptionally 29 cm across. [4] The only plants on Java remotely similar to Rhizanthes zippelii are those of the genus Rafflesia , but the similarly giant and foul-smelling flowers of Rafflesia always have five perianth-lobes. Rh. zippelii, on the other hand, has many more -how many more varies, but there are generally 14 to 18 of such lobes, although 16 is the most common. [3] These lobes are furthermore different by ending in a long hanging strips, [4] [8] with its reddish-brown flesh colour and texture, [3] [4] the flower thus looking like a big, fat, dead octopus on its head.

The flower is scentless when it first opens, but the odour soon grows fetid and rank, smelling of rotting carrion. The flower also changes colour as it opens: at first it is white or red, but over the following days it turns brown with anthesis, eventually turning black with senescence. The texture of the perianth (the big outer parts) is firm and fleshy to stiff and leathery. The outside of the flower is smooth to the touch (glabrous), but the inside has many hairs and minuscule, stalked warts. The hairs are long, brown and patent (spreading at around 45° from the surface -not erect or pressed to the surface). The inside of the perianth tube is coloured a sordid white, with many brown-coloured, longitudinal grooves. [3]

The buds have around fifteen scales protecting the developing flower, these are semi-persistent, which means they remain connected to the flower after it opens, but can fall off with a little tug. [3]

Similar species

Until 2000, there were two species of Rhizanthes, Rh. zippelii and Rh. lowii. There is no clear difference between the two species, they are indistinguishable without dissecting the flowers and examining their insides microscopically. [4]

Ecology

This strange plant is a holoparasite of the roots of the jungle liana Tetrastigma papillosum , a plant related to the grape vine. The flowers bud out of the thicker base roots of the vine, just below the surface of the soil. [3] In the Sundanese language the host vine is known as susuan, thus the name for Rhizanthes zippelii is perut susuan, the 'belly of susuan'. [8] It appears to prefer to grow in the densest thickets in tropical rainforest on steep slopes, which is one reason it is little seen. [3] [8]

Related Research Articles

<i>Rafflesia</i> Genus of flowering plants

Rafflesia is a genus of parasitic flowering plants in the family Rafflesiaceae. The species have enormous flowers, the buds rising from the ground or directly from the lower stems of their host plants; one species has the largest flowers in the world. The genus contains approximately 28 species, all found in Southeast Asia, mainly in Indonesia, Malaysia, Thailand and the Philippines. For Western Europe, it was first discovered by French surgeon and naturalist Louis Deschamps in Java between 1791 and 1794, but his notes and illustrations, seized by the British in 1803, were not available to western science until 1861. The first British person to see one was Joseph Arnold in 1818, in the Indonesia rainforest in Bengkulu, Sumatra, after a Malay servant working for him discovered a flower and pointed it out to him. It was later named after Stamford Raffles, the leader of the expedition.

Herbarium Scientific collection of dried plants

A herbarium is a collection of preserved plant specimens and associated data used for scientific study.

<i>Rafflesia arnoldii</i> Species of flowering plant

Rafflesia arnoldii, the corpse flower or giant padma, is a species of flowering plant in the parasitic genus Rafflesia. It is noted for producing the largest individual flower on Earth. It has a strong and unpleasant odor of decaying flesh. It is native to the rainforests of Sumatra and Borneo. Although there are some plants with larger flowering organs like the titan arum and talipot palm, those are technically clusters of many flowers.

Rafflesiaceae Family of flowering plants

The Rafflesiaceae are a family of rare parasitic plants comprising 36 species in 3 genera found in the tropical forests of east and southeast Asia, including Rafflesia arnoldii, which has the largest flowers of all plants. The plants are endoparasites of vines in the genus Tetrastigma (Vitaceae) and lack stems, leaves, roots, and any photosynthetic tissue. They rely entirely on their host plants for both water and nutrients, and only then emerge as flowers from the roots or lower stems of the host plants.

<i>Sapria</i> Genus of flowering plants

Sapria is a genus of parasitic flowering plants in the family Rafflesiaceae. It grows within roots of Vitis and Tetrastigma. The genus is limited to the tropical forests of South and Southeast Asia.

Pieter B. Pelser New Zealand botanist

Pieter B. Pelser is a Lecturer in Plant Systematics and the curator of the herbarium at the University of Canterbury in Christchurch, New Zealand. One research interest is the evolutionary history of the tribe Senecioneae, one of the largest tribes in the largest family of flowering plants. He wrote the most recent attempt to define and delimit this tribe and its problematic founding species Senecio. He also studies insects that eat these plants (Longitarsus) which contain pyrrolizidine alkaloids and what makes them choose which plants they eat.

Rafflesia philippensis is a parasitic plant species of the Rafflesiaceae family that was named by Francisco Manuel Blanco in his Flora de Filipinas in 1845. The species is known only from a mountain located between the provinces of Laguna and Quezon, Luzon where it was first discovered. Its plant host is Tetrastigma pisicarpum. This species went unnoticed since its first description by Blanco but was rediscovered in 2003 by members of the Tanggol Kalikasan, a local environment conservation group in Quezon province who first saw and photographed the open flower of this species. It was brought to the attention of Manuel S. Enverga University (MSEUF), who formed a team composed of students and faculty to document the newly discovered Rafflesia species.

Rafflesia patma is a parasitic plant species of the genus Rafflesia. It is only known to grow on the Indonesian island of Java, although it may have occurred on Sumatra in the past. Like the other species in its genus, this strange plant has no leaves, stems, roots or even chlorophyll, stealing all its nutrition from Tetrastigma lanceolaurium, a rainforest liana. Instead, the anatomy of this plant has devolved into mere mycelium-like strands of cells infecting the internal vascular system of its host. For general observers, the only time one might know this plant exists at all is when it flowers, and when it does, it does so impressively. The gigantic five-lobed flowers measure 30 to 60cm across, and stink with the odour of rotting flesh. This stench attracts mostly female carrion flies searching for a place to lay their eggs. When they fly inside the large pot-like structure in the middle of the flower, they find a central column inside, topped with a wart-covered disc-like plate; under the rim of this plate they find a small crevice, into which they crawl believing they have found an opening into the soft parts of a rotting body -instead, the rim is shaped in such a way that, when investigating, their backs are thus smeared with the jelly-like pollen if the Rafflesia flower is male, or it is pressed against a zone of modified stigmas if the flower is female.

<i>Rafflesia zollingeriana</i> Species of flowering plant

Rafflesia zollingeriana is a species of flowering plant in the family Rafflesiaceae, native to Java. Of three species of Rafflesia known from Java this species has always been the most rare and restricted, it is only known from collection locales in Banyuwangi Regency, Jember Regency and Lumajang Regency, southern East Java. It was first scientifically collected in 1902 by Sijfert Hendrik Koorders on the eastern flanks of Mount Puger Watangan, a forested hill near the beach, who described it as a new species in 1918. Many decades later a flowering plant was discovered in Meru Betiri National Park, also in the Jember Regency somewhat further down the coast to the east.

<i>Sapria himalayana</i> Species of flowering plant

Sapria himalayana, commonly known as the hermit's spittoon, is a rare holoparasitic flowering plant related to Rafflesia found in the Eastern Himalayas. Sapria himalayana represents the extreme manifestation of the parasitic mode, being completely dependent on its host plant for water, nutrients and products of photosynthesis which it sucks through a specialised root system called haustoria. These haustoria are attached to both the xylem and the phloem of the host plant.

<i>Suaeda nigra</i> Species of flowering plant

Suaeda nigra, often still known by the former name Suaeda moquinii, is a species of flowering plant in the amaranth family, known by the vernacular names bush seepweed or Mojave sea-blite.

<i>Rhizanthes</i> Genus of flowering plants

Rhizanthes is a genus of four species of parasitic flowering plants in the family Rafflesiaceae. They are without leaves, stems, roots, or photosynthetic tissue, and grow within the roots of a few species of Tetrastigma vines. The genus is limited to the tropical forests of Southeast Asia. The flowers of Rhizanthes are very large, they vary from 14 to 43 cm in diameter. At least one species of Rhizanthes, Rh. lowii, is endothermic.

Rhizanthes lowii is a species of parasitic flowering plant without leaves, stems, roots, or photosynthetic tissue. It grows on the roots of the Tetrastigma vine. It includes the specimens with the largest measured flowers in Rhizanthes, from 25 to 43 cm across. They are endothermic, not only producing their own heat, but they also have the rare ability to regulate their own temperature.

<i>Suaeda aegyptiaca</i> Species of plant

Suaeda aegyptiaca is a species of succulent plant in the family Amaranthaceae, and salt-tolerant (halophyte) plant that is distributed in eastern North Africa, the Near East and West Asia.

Alexander Zippelius was a Dutch horticulturalist and botanical collector in the East Indies.

Balanophora is a genus of parasitic plants in the family Balanophoraceae found in parts of tropical and temperate Asia, including the Eastern Himalayas, Malesia region, Pacific Islands, Madagascar, and tropical Africa. There are about 20 accepted species, including the newly discovered B. coralliformis. Many species emit an odour which possibly attracts pollinators in the same way that pollinators are attracted to Rafflesia.

<i>Rafflesia verrucosa</i> Species of mammal

Rafflesia verrucosa was first identified and characterized during a small mammal survey of Mt. Kampalili in eastern Mindanao in 2010. R. verrucosa is the tenth species of Rafflesia found in the Philippines. Rafflesia species have rare and unusual flowers known for their large size and pungent smell. Some plant enthusiasts like Frits W. Went have gone to extreme measures to see these plants in bloom. Went detailed his search for Rafflesia saying,

"I had heard, when I was in Java many years ago, that Rafflesia were to be found on an offshore island named Nusah Kembangan. This was in 1929, when it was a penal colony for major criminals. My driver on this occasion was a convicted murderer, and my guide was serving time for cannibalism."

<i>Protea pudens</i> Flowering tree

Protea pudens, also known as the bashful sugarbush, is a low-growing, groundcover-like, flowering shrub in the genus Protea. It is only found growing in the wild in a small area in the Western Cape province of South Africa.

<i>Protea burchellii</i> Species of flowering plant

Protea burchellii, also known as Burchell's sugarbush, is a flowering shrub in the genus Protea, which is endemic to the southwestern Cape Region of South Africa.

Zippelia begoniifolia is the only species of the monotypic genus Zippelia, a genus of plants in the Piperaceae, the same botanical family as that of black pepper. The species has also been spelled as Z. begoniaefolia. It is an erect, ascending, perennial herb with leaves of 6 to 12.5 cm in length. It occurs in Borneo, Cambodia, southern-central and southeast mainland China as well as Hainan, Java, Laos, Peninsular Malaysia, the Philippines, Sumatra, Thailand and Vietnam.

References

  1. 1 2 "Rhizanthes zippelii". International Plant Names Index . The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries and Australian National Botanic Gardens. Retrieved 31 October 2020.
  2. 1 2 "Rhizanthes zippelii (Blume) Spach". Plants of the World Online . Royal Botanic Gardens, Kew. 2017. Retrieved 31 October 2020.
  3. 1 2 3 4 5 6 7 8 9 10 11 Backer, C. A.; Bakhuizen van den Brink, R. C. (1963). Flora of Java. I. Groningen: N.V. P. Noordhoff under auspices of Rijksherbarium, Leyden. p. 166.
  4. 1 2 3 4 5 6 7 8 9 10 Bänziger, Hans; Hansen, Bertel (2000). "A new taxonomic revision of a deceptive flower, Rhizanthes Dumortier (Rafflesiaceae)" (PDF). The Natural History Bulletin of the Siam Society: 117–143. Archived from the original on 2014-05-12.
  5. "Brugmansia zippelii". International Plant Names Index . The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries and Australian National Botanic Gardens. Retrieved 30 October 2020.
  6. "Brugmansia lowii". International Plant Names Index . The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries and Australian National Botanic Gardens. Retrieved 30 October 2020.
  7. "Mycetanthe zippelii". International Plant Names Index . The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries and Australian National Botanic Gardens. Retrieved 31 October 2020.
  8. 1 2 3 4 5 6 Meijer, W.; Veldkamp, J. F. (1988). "A revision of Rhizanthes (Rafflesiaceae)" (PDF). Blumea. 33 (2): 329–342. ISSN   2212-1676 . Retrieved 28 October 2020.
  9. 1 2 Coomans de Ruiter, L. (October 1935). "De Eerste Vindplaatsen van Mycetanthe zippelii (Bl.) Hochr. in West-Borneo en verdere aantekeningen over Rafflsia tuan-mudae Becc". De Tropische Natuur (in Dutch). 24 (10): 171–175. Retrieved 31 October 2020.
  10. van Steenis, Cornelis Gijsbert Gerrit Jan (3 August 1989). "Dedication to the memory of Carl Ludwig Blume". Flora Malesiana. 10, part 4. Dordrecht: Kluwer Academic Publications, under auspices of Foundation Flora Malesiana. pp. 9, 36, 37. ISBN   0-7923-0421-7.
  11. "Zippelia - (plant)". Etymologiebank.nl (in Dutch). Instituut voor de Nederlandse Taal. Retrieved 1 November 2020.
  12. Willem, Meijer (1997). "Rafflesiaceae". Flora Malesiana. 13. Leiden: Hortus Botanicus Leiden, under auspices of Foundation Flora Malesiana. p. 15. ISBN   90-71236-33-1.