Difference between revisions of "Pachystoma"
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| + | 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. B.M. 6471. J.H. III. 51:147. | ||
| + | G.C. II. 12:582 (note), 624, 625; 18:501. Gt. 30:1061.—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. | ||
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{{Taxobox | color = lightgreen | name = ''Pachystoma'' | regnum = [[Plant]]ae | divisio = [[Flowering plant|Magnoliophyta]] | classis = [[Monocotyledon|Liliopsida]] | ordo = [[Asparagales]] | familia = [[Orchidaceae]] | subfamilia = [[Epidendroideae]] | tribus = [[Arethuseae]] | subtribus = [[Bletiinae]] | genus = '''''Pachystoma''''' | genus_authority = [[Karl Ludwig von Blume|Blume]] | subdivision_ranks = Species | subdivision = *''[[Pachystoma holtzei]]'' *''[[Pachystoma nutans]]'' *''[[Pachystoma pubescens]]'' *''[[Pachystoma senile]]'' *etc. }} '''''Pachystoma''''' is a [[genus]] of [[orchid]]s ([[family (biology)|family]] Orchidaceae). The genus has about 10 species, distributed over [[India]], [[China]], [[Indomalesia]], northern [[Australia]] and several [[Pacific Islands]] (including [[New Caledonia]]). The genera '''''Apaturia''''' <small>[[John Lindley|Lindl.]]</small>, '''''Pachychilus''''' <small>[[Karl Ludwig von Blume|Blume]]</small> and '''''Pachystylis''''' <small>[[Karl Ludwig von Blume|Blume]]</small> have been brought into [[synonymy]] with ''Pachystoma''. [[Category:Orchid genera]] | {{Taxobox | color = lightgreen | name = ''Pachystoma'' | regnum = [[Plant]]ae | divisio = [[Flowering plant|Magnoliophyta]] | classis = [[Monocotyledon|Liliopsida]] | ordo = [[Asparagales]] | familia = [[Orchidaceae]] | subfamilia = [[Epidendroideae]] | tribus = [[Arethuseae]] | subtribus = [[Bletiinae]] | genus = '''''Pachystoma''''' | genus_authority = [[Karl Ludwig von Blume|Blume]] | subdivision_ranks = Species | subdivision = *''[[Pachystoma holtzei]]'' *''[[Pachystoma nutans]]'' *''[[Pachystoma pubescens]]'' *''[[Pachystoma senile]]'' *etc. }} '''''Pachystoma''''' is a [[genus]] of [[orchid]]s ([[family (biology)|family]] Orchidaceae). The genus has about 10 species, distributed over [[India]], [[China]], [[Indomalesia]], northern [[Australia]] and several [[Pacific Islands]] (including [[New Caledonia]]). The genera '''''Apaturia''''' <small>[[John Lindley|Lindl.]]</small>, '''''Pachychilus''''' <small>[[Karl Ludwig von Blume|Blume]]</small> and '''''Pachystylis''''' <small>[[Karl Ludwig von Blume|Blume]]</small> have been brought into [[synonymy]] with ''Pachystoma''. [[Category:Orchid genera]] | ||
Revision as of 13:39, 2 June 2009
Read about Pachystoma in the Standard Cyclopedia of Horticulture
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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. B.M. 6471. J.H. III. 51:147. G.C. II. 12:582 (note), 624, 625; 18:501. Gt. 30:1061.—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.
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| *Pachystoma holtzei *Pachystoma nutans *Pachystoma pubescens *Pachystoma senile *etc. |
Pachystoma is a genus of orchids (family Orchidaceae). The genus has about 10 species, distributed over India, China, Indomalesia, northern Australia and several Pacific Islands (including New Caledonia). The genera Apaturia Lindl., Pachychilus Blume and Pachystylis Blume have been brought into synonymy with Pachystoma.
