Paphiopedilum Subgenus Parvisepalum Karasawa & Saito
- Described: Karasawa & Saito in Bulletin of the Hiroshima Botanical Garden, 5: 31-32 (1982)
- Type Species: Paphiopedilum delenatii Guillaumin
- Latin Diagnosis: Subgen. Brachypetali similis, sed differt polliniis granulosis. stigmate longipedicellato, sepalis parvioribus quam petalis, labello calceolato gracile leviter plicato.
- Defining Characteristics: Subgenus Paphiopedilum is distinguished from Subgenus Brachypetalum by the following: "1) pollinia granulous, 2) stigmata much elongated, and long-stalked, 3) occurence of stolon, 4) upper sepal much smaller than lateral petals, and 5) lip strongly calceolate, thin, grassy and faintly plicate" (Karasawa & Saito, 1982)
Infrasubgeneric Divisions (as defined according to Averyanov & Cribb 2003, see 'Notes' below)
- Paphiopedilum Subgenus Parvisepalum Section Parvisepalum (Karasawa & Saito) Cribb
- Described: Karasawa & Saito in Bulletin of the Hiroshima Botanical Garden, 5: 31-32 (1982)
- Transferred: Cribb in The Genus Paphiopedilum, 86 (1987)
- Type Species: Paphiopedilum delenatii Guillaumin
- Species Included: Paph. armeniacum, Paph. delenatii, Paph. malipoense, Paph. micranthum, Paph. vietnamense
- Defining Characteristics: "Plants often develop stolons. Leaves distinctly tessellated with dark green and pale grayish blotches above and heavily spotted or uniformly tinged with dirty-purple-violet beneath, usually 10-15 cm long (rarely longer), 1.5-4 cm wide. Inflorescence 1-2 flowered. Flowers pink, pink-purple, bright yellow or pale green. Lip larger or scarecely shorter than lateral petals." (Averyanov & Cribb 2003)
- Paphiopedilum Subgenus Parvisepalum Section Emersonianum Averyanov & Cribb
- Described: Averyanov & Cribb in Slipper Orchids of Vietnam, 131 (2003)
- Type Species: Paphiopedilum emersonii Koopowitz & Cribb
- Latin Diagnosis: affinis sect. Parvisepali, sed folia magna, 20-35 cm longa, homochroma viridis, inflorescentia uniflora, plantae exstolonosae, flori albo vel pallide viridi-flava, et labello distincto petalo minoris differt.
- Species Included: Paph. emersonii, Paph. hangianum
- Defining Characteristics: "From the allied section Parvisepalum this new section differs in always lacking stolons, having large uniformly green leaves, 20-35 cm long, a 1-flowered inflorescence, and has white or pale yellowish-green flowers and a lip which is distinctly smaller than the lateral petals." (Averyanov & Cribb 2003)
Species Distribution
The sources of the info for the distribution of each species [not listed in the image itself] are listed in the individual data sheets. It would be far too confusing to list them all here.
Staminodes
The staminode images were taken from photos that various people have allowed me to use on the site.
Notes
- In my opinion, the further segregation of Subgenus Parvisepalum into Sections Parvisepalum & Emersonianum is unwarranted. As quoted above, the new Section Emersonianum is differentiated based on 5 characters: presence or lack of stolons, leaf morphology, 1-flowered inflorescences, flower color, and pouch size. The only characteristic of these 5 which doesn't overlap between the two sections is the leaf morphology. The two species of Section Emersonianum lack the distinct leaf mottling of the five species in Section Parvisepalum. This one characteristic is not enough, in my opinion, to warrant formal segregation. As a counter-example, the species within Subgenus Parvisepalum could just as easily be segregated based upon staminode morphology or along the strict presence vs. absence of stolons.
Sources
- Averyanov, L; Cribb, PJ; Loc, P, Hiep, N. Slipper Orchids of Vietnam. Portland: Timber Press; 2003.
- Cribb, PJ. The Genus Paphiopedilum. London: RBG, Kew & Collingridge; 1987.
- Karasawa, K, Saito, K. A Revision of the Genus Paphiopedilum. Bulletin of the Hiroshima Botanical Garden 5:1-69, Dec; 1982.
Species Data Sheets
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Page Created By: Stephen Manza
Last Updated: 9-4-06
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