450 ORCHIDES. 



rONERA. 



1377. POIVERA Lindl. 

 Orch. 113. 

 Lintll. B. Reg. XXVIII. 1842. Misc. 17: 



Sepala erecta , carnosa , lateralia majora , basi producla cum pede 

 eloiigato columnae connata; dorsale planum. Petala ovaiia, basi angus- 

 tata, libera. Labellum cuneatum , bilobum, ascendens, arcuatum, cum 

 basi columnae articulalum, omnino nuilum. Columna brevis, teres. An- 

 Ihera membranacea, depressa, 4-locularis. Pollinia per paria adhaerenlia; 

 caudiculis binis pulvereis incurabenlibus. Stigma subrotundum, ex- 

 cavatum, subbilabialiiiii. 



Herbae terrestres , gromineae, slmpiices. Folia iinearia, disticha, vaginis verriicosis. 

 Flores fasciculati, terminales (?) in caule folioso. v. axillares in caule defoliato. Ova- 

 riura breve, conicum, rectum, sessile. 



Represents among Epidendreae the tribe of Maiaxeae and Vandeae of which 

 DenJrobium and Maxiilaria are respeciiy ihe types, 



a. Ebulbes distichifoliae. 



1. PONERA JUNCIFOLIA LO 113. LindL B. Reg. XXVIIL 1842. Misc. 17. 



Foliis subulafjs canaliculatis secundis, spica subbiflora terminali in 

 caule folioso, labello retuso, clinandrio mutico. 

 Mexico. 



A simple specimen of this rare plant exists in Mr. Lamberts herbar. If has a 

 siem about a spon high , and extremely narrow leaves , which in the dried siate at 

 ieast. are nll directed towards one side. The flowers are separated from each other 

 by an interval of nearly hnlf an inch. 



2. PONERA GRAMINIFOLIA Lindl. B. Reg. XXV. 1839. Misc. 15. 



Nemaconia graminifolia Knowles and Westcott Flor. cab. II. 1838. 

 p. 127! Foliis lineari lanceolalis emarginatis, spica subbiflora, terminali, 

 caule folioso, labello oblongo acuto apice recurvo, crenulato, clinandrio 

 mutico. 



I presume the irifling diflerences. which exist belween ihis sjiecies and the description 

 ia ihe above work (LO 113) are owing to imperfect observations in the latter case. 

 They have however lod Mr. Knowles and Westcoit lo suppose, thal Ihis plant forms 

 a new genus, an error. which I hasten to correct. Ilaving received llowers of it 

 frora Mr. Barker I flnd ihat it agrees in every essential particular wiih the struciure 

 of Poncrn juncifoUa, so nearly indeed that , if the leaves of tlie iwo were not difl^e- 

 rent, sorae doubt might be entertained of their being specifically dilTerenl. P. gra- 

 minifolia is a plant of no beauty and is chiefly remarkable for having ihe scabrous 

 .'ilems, wbich are so conspicuons in the elegant Arpophyllum spicatum from the same 

 country. 



B. Reg. XXVIII. 1842. Misc. 17: Mexico. — A grassy plant of no beauty resembling 

 Ponera striaia in ihe lotm of its leaves, but diO". in ihe structure of ihe flowers. 



Floral. Cab. II. 1838. V-il. — This is a vcry singular parl. for while in ihe slruciure 

 of ihe sepals. pclals and labelliim it vcry nearly approaches the genus Maxillaria, 

 it has pollen and caudiculae of tbe tribe uf Epidendreae. The siems have a very re- 

 mnrkable appearance in nol having a solilary leaf. bul covered wilh dusky papillose 

 shcaibs. Xalappa. George Barker Esq. 



3. PO.XERA STRIATA Lindl R. Reg. XXVIII. 1842 sub Misc. 17. 



Foliis lineari-lanceulalis obliqiie emarginatis , spica subbiflora axillari 

 in caule defolialo. labello bilobo iiilecro. clinnndrii denle dorsali in 

 nnlheram incurvo. 

 Guateinala. 



