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[[{{{domain}}}]] > [[{{{superregnum}}}]] > Plantae > [[{{{subregnum}}}]] > [[{{{superdivisio}}}]] > [[{{{superphylum}}}]] > Magnoliophyta > [[{{{phylum}}}]] > [[{{{subdivisio}}}]] > [[{{{subphylum}}}]] > [[{{{infraphylum}}}]] > [[{{{microphylum}}}]] > [[{{{nanophylum}}}]] > [[{{{superclassis}}}]] > Liliopsida > [[{{{subclassis}}}]] > [[{{{infraclassis}}}]] > [[{{{superordo}}}]] > Asparagales > [[{{{subordo}}}]] > [[{{{infraordo}}}]] > [[{{{superfamilia}}}]] > Orchidaceae > [[{{{subfamilia}}}]] > [[{{{supertribus}}}]] > Arethuseae > [[{{{subtribus}}}]] > Pachystoma {{{subgenus}}} {{{sectio}}} {{{series}}} var.

Standard Cyclopedia of Horticulture

Pachystoma (Greek, meaning thick mouth, referring to the thick lip). Orchidaceae. Terrestrial orchids with leafless scapes from underground nodose rhizomes: pseudobulbs producing 1-2 lvs.: sepals and petals similar, the lateral sepals occasionally forming a chin, all upright; labellum 3-lobed, forming a sack with the base of the column; anthers bent over; pollinia 8, lying in pairs and bound into 4 by elastic threads.

About 10 species, chiefly E. Indian and Malayan, but 1 from Trop. Afr. P. Thomsoniana, Reichb. f. (Ancis- trochilus Thomsonianus, Rolfe), is the most commonly cult, species. It has large fls. with white sepals and petals, and the lip has green erect side lobes thickly dark purple-spotted and a narrow recurved midlobe which is white nearly covered with deep purple lines. Trop. Afr. —A warmhouse plant. P. Thomsoniana is now referred to Ancistrochilus by Rolfe. Ancistrochilus has 2 species and is readily distinguished from Pachystoma by the pollinia being united to a single stipitate appendage as well as by the remarkable lip and spreading segms.CH

The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


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