| Bulbophyllum fenestratum | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Subfamily: | Epidendroideae |
| Genus: | Bulbophyllum |
| Species: | B. fenestratum |
| Binomial name | |
| Bulbophyllum fenestratum | |
| Synonyms [2] | |
Bulbophyllum fenestratum is a species of orchid in the section Cirrhopetalum that is native to Southeast Asia. The specific epithet fenestratum derives from the Latin fenestra, meaning "window". [3]
Bulbophyllum fenestratum is a small epiphyte with a creeping rhizome giving rise to ovoid to ellipsoid, distinctly four-angled pseudobulbs spaced 2–16 cm apart. [4] Each pseudobulb bears a single apical, erect, obovate to egg-shaped leaf with an obtuse to acute tip and a petiolate base. [4]
The inflorescence is erect to spreading, arising from the base of the pseudobulb on a peduncle 8–12 cm long with a porrect to curved rachis, reaching 9–13 cm in total length. [4] The inflorescence is subumbellate, bearing 7 to 15 flowers arranged in an umbrella-like cluster characteristic of the Cirrhopetalum section. [4] [5] Individual flowers are approximately 1 cm long, white densely punctuated with pink, and borne on pedicels of similar length. [3] [6] The flowers are fragrant and possess a mobile lip, a characteristic feature of the genus Bulbophyllum. [7]
Bulbophyllum fenestratum was first formally described in 1907 by Johannes Jacobus Smith in the Bulletin du Département de l'Agriculture aux Indes Néerlandaises from specimens collected in Java. [2] [3] The species is placed in Bulbophyllum section Cirrhopetalum , a group characterized by umbellate inflorescences and lateral sepals that are longer than the dorsal sepal. [5]
Several names are now considered synonyms of this species, including Bulbophyllum dentiferum described by Henry Nicholas Ridley in 1915 and Bulbophyllum cyclosepalon described by Cedric Errol Carr in 1932. [2]
Bulbophyllum fenestratum is found in Thailand, Peninsular Malaysia, Sumatra, Java, and Borneo. [2] [4] It grows as an epiphyte in rather open, dry primary forests at elevations between 100 and 1,100 metres. [4]
In cultivation, Bulbophyllum fenestratum is described as an easy-growing species tolerant of a range of temperatures from hot to cool conditions. [4] [7] Like most members of the genus Bulbophyllum, it requires high humidity combined with good air movement and grows best at moderate light levels. [8] The species is considered cold-tolerant relative to other members of its section. [7]