| Gymnosphaera acrostichoides | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Cyatheales |
| Family: | Cyatheaceae |
| Genus: | Gymnosphaera |
| Species: | G. acrostichoides |
| Binomial name | |
| Gymnosphaera acrostichoides | |
| Synonyms [2] | |
| |
Gymnosphaera acrostichoides is a species of tree fern found in forests of eastern Indonesia and Papua New Guinea.
The trunk is erect and usually 1 to 3 metres (3.3 to 9.8 ft) tall. Fronds are bipinnate and 1 to 2 metres (3.3 to 6.6 ft) long. The stipe is slender and covered with spines. It is sparsely covered with medium brown scales. Sori cover most of the underside of fertile pinnules. G. acrostichoides lacks indusia. [3]
Gymnosphaera acrostichoides is native to the Maluku Islands and New Guinea, where it grows in forest and disturbed sites at an elevation of 60 to 1,830 metres (200 to 6,000 ft). [1]
Mount Cameroon is an active volcano in the South West region of Cameroon next to the city of Buea near the Gulf of Guinea. Mount Cameroon is also known as Cameroon Mountain or Fako or by its indigenous name Mongo ma Ndemi. Mount Cameroon is ranked 22nd by topographic isolation.
The Cyatheaceae are a family of ferns, the scaly tree ferns, one of eight families in the order Cyatheales in the Pteridophyte Phylogeny Group classification of 2016. Alternatively, the family may defined much more broadly as the only family in the Cyatheales, with the PPG I family treated as the subfamily Cyatheoideae. The narrower circumscription is used in this article.
Mount Giluwe is the second highest mountain in Papua New Guinea at 4,367 metres (14,327 ft), and the fifth highest peak on the island of New Guinea. It is located in the Southern Highlands province and is an old shield volcano with vast alpine grasslands. Ancient volcanic plugs form its two summits, with the central peak the highest and an east peak about 2 kilometres (1.2 mi) away at 4,300 m (14,108 ft). Giluwe has the distinction of being the highest volcano on the Australian continent and Oceania, and is thus one of the Volcanic Seven Summits.
Alsophila albidosquamata, synonyms Cyathea albidosquamata and Sphaeropteris albidosquamata, is a species of tree fern native to the Maluku Islands, New Guinea and the Bismarck Archipelago, where it grows in rain forest and montane forest at an altitude of 620–2,500 metres (2,000–8,200 ft). The trunk is erect and about 2 m tall. Fronds are bi- or tripinnate and 1–1.5 m in length. The lower surface of the rachis is covered in scales and the stipe has scattered scales throughout its length. These are glossy and pale, with dull, fragile edges. Sori occur near the fertile pinnule midvein and have flat indusia which resemble small saucers.
Alsophila rosenstockii, synonym Cyathea ascendens, is a species of tree fern native to northeastern New Guinea, where it grows in rain forest at an altitude of 800–1,000 m (2,600–3,300 ft). The erect trunk is slim and 1–2 m tall. Fronds are bi- or tripinnate and may be over 1 m in length. They form a distinctive open crown. The stipe is covered in glossy scales with pale, fragile edges. Sori occur near the midvein of fertile pinnules and lack indusia.
Alsophila capensis, synonym Cyathea capensis, is a regionally widespread and highly variable species of tree fern. It is indigenous to Southern Africa and South America.
Gymnosphaera is a genus of tree ferns in family Cyatheaceae.
Alsophila dregei, synonym Cyathea dregei, is a widespread species of tree fern in southern Africa.
Alsophila ferruginea, synonym Cyathea ferruginea, is a species of tree fern endemic to the Philippines. It is native to the islands of Negros, Palawan and Balabac. It grows in mossy forest up to an altitude of about 1,200 metres (3,900 ft).
Gymnosphaera commutata is a Malesian species of tree fern found in wet and swampy forests.
Gymnosphaera glabra, synonyms Alsophila glabra and Cyathea glabra, is a species of tree fern native to Borneo, western Java, Sumatra, the Lesser Sunda Islands, Sulawesi, and the Malay Peninsula, where it grows in lowland swamp forest and montane forest at an elevation of up to 1500 m. The trunk of this plant is erect and 2–4 m tall. Fronds are bi- or tripinnate and 1–2 m in length. Characteristically of this species, the lowest pinnae may be significantly reduced. The stipe is very dark and bears basal scales. These scales are dark, glossy and have a paler margin and fragile edges. Sori are produced in groups of one to three on fertile pinnule veins. They lack indusia.
Gymnosphaera denticulata, synonyms Alsophila acaulis, Alsophila denticulata and Cyathea hancockii, is a species of tree fern native to Japan, the Ryukyu Islands, Taiwan, southern China, Hong Kong, and Hainan. It grows in forest, on stream banks, and in forest margins at an elevation of about 600 m or higher. The specific epithet hancockii commemorates William Hancock (1847-1914), who collected numerous plants in Japan, China and Southeast Asia.
Cyathea delgadii is a widespread species of tree fern. It is native to Central America, and much of South America. The specific epithet delgadii refers to Gancho do Generale Delgado, along the road to Caldas Novas, Brazil, where the type material was collected.
Gymnosphaera hornei is a species of tree fern in the Cyatheaceae family.
Alsophila lepidoclada is a species of tree fern native to central and eastern New Guinea, where it is locally common in rainforest and mossy forest at an elevation of 200–1,000 metres (660–3,280 ft) above sea level. The trunk of this species is erect and usually 2–3 m tall. Fronds are bipinnate, about 1.5 m in length, and form a sparse crown. The stipe bears blunt spines and scales towards the base. These scales are glossy, dark brown in colouration, and have a paler, thin margin. The round sori are borne in groups of four to five per fertile segment. They are covered by deep, firm indusia that are cup-like in appearance.
Polystichum acrostichoides, commonly denominated Christmas fern, is a perennial, evergreen fern native to eastern North America, from Nova Scotia west to Minnesota and south to Florida and eastern Texas. It is one of the most common ferns in eastern North America, being found in moist and shady habitats in woodlands, stream banks and rocky slopes. The common name derives from the evergreen fronds, which are often still green at Christmas.
Gymnosphaera podophylla, synonyms Alsophila podophylla and Cyathea podophylla, is a widespread species of tree fern native to southern China, Hainan, Taiwan, Vietnam, Laos, Myanmar, Thailand, Cambodia, the Ryukyu Islands, and Japan. It grows in forest by streams and in ravines at elevations of 600–1000 m.
Phaleria perrottetiana is a plant in the family Thymelaeaceae.
Tai Mo Shan is the highest peak in Hong Kong, with an elevation of 957 metres (3,140 ft) above the Hong Kong Principal Datum, or around 956 metres (3,136 ft) above mean sea level. It is located at approximately the geographical centre of the New Territories.
Gymnosphaera olivacea is a species of tree fern endemic to eastern New Guinea.
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