70 



ceis infcriore bicarinato bidentato, petalis carnosis obovatis convexis 

 trinerviis apice rotundatis dorso sub apice veiTucosis, labello petalis 

 duplo longiore unguiculato crassissimo obtiiso linguiformi basi auriculis 



duabus membranaceis aueto medio villoso dorso verrucoso. Mexico. 



— This is a large-flowered species. It has purple semitransparent 



sepals six lines long, and about four flowers on a slender scape, divided 

 from each other by intervals of nearly an inch. 



11. P. pandurifera ; cfespitosa, folio oblongo marginato basi angustato apice 



tridentato caulis longitudine, pedunculo setaceo folio triplo longiore apice 

 flexuoso 5-6-floro, sepalis diaphanis ovatis infimo bidentato, petalis nanis 

 obovatis obtusissimis, labello pandurato lobo intermedio angustiore rotun- 

 dato, cUnandrio late marginato membranaceo. Brazil. An inha- 

 bitant of the Organ Mountains, where it was found by Mr, ]\Iiers. It 

 looks like a small starved specimen of P. Grobyi. 



12. P. quadrijida {Dendrobium quadrifidum, La Llav. 2. 40) ; caule elongato, 

 folio cuneato-oblongo carnoso lucido vaginante, racemis fasciculatis lon- 

 gissimis erectis, bracteis acutis vaginantibus, perianthio 4-partito : sepa- 

 lis apice reflexis, petalis sublinearibus erectis acutis, labello 3-lobo cari- 



nato cum column a elastic^ articulato. Mexico. Flores lutescentes 



moUes odorem citjinum vespere spirantes. 



ttt TrisepalsD (nempe sepalis lateralibus ultra medium 



liberis.) 



13. P. acuminata {Bendrobiiun acuminatum, H. B. K. 1. 357.) ; "caule mo- 



nophyllo ; folio oblongo acuto ; spicis subgeminis ; foliolis calycinis 



exterioribus lanceolato-linearibus acuminatis." Peru. Caulis, 



adjecta spica, sesquipedalis, vaginatus. Vaginae acutse, apice laxius- 

 culse, subpolhcares. Folium basi angustatum, coriaceum, bipoUicare, 

 8-9-lineas latum. Spicse terminales, 4-G-pollicares, strictse, basi spathis 

 brevibus involutse. Flores pedicellati, bracteolis subtruncatis. Flores 

 vix patuli. Sepalum supremum concavum ; lateralia plana, basi cum 

 vxngue labelli connata, semipollicaria. Petala triplo quadruplove breviora. 

 Labellum lanceolato-oblongum, obtusum, basi unguiculatum, subcanaU- 

 culatum, plicis tribus longitudinalibus instructum. Ex Kunth. 



14. P. eleyans [Bendrobium elegans, H. B. K. 1. 358 ) ; "caule monophyllo, 

 folio oblongo obtuso, spicis quatei'nis vel quinis, foliohs calycinis exte- 

 rioribus oblongis obtusiusculis." Neio Granada. Caulis 8-9-pblI. 



Vaginee submarcidse, subbipollicares. Folium 5-6-poll. sesquipoll. latum. 

 SpiccC erectfe, 6-7-poll. basi bractea ovato-oblonga membranacea glabra 

 sesquipollicari fuscescenti cinctaj. Flores subsecundi cernui. Sepala 

 diaphana, alba, nervis punctisq. violaceis picta : lateralia trinervia, basi 

 ungui labelli adnata, 3 lineas longa ; supremum latius 5-nervium. 

 Petala duplo breviora, rotundata. Labellum unguiculatum, sepalis duplo 

 brevius, basi sepalis lateralibus connatum ; lamina libera, cum ungue 

 articulata, ovato-elliptica, obtusa, carinata, trinervia, violaceo-punctata. 

 Pollinia 2, pedicellata. Ex Kunth. 



15. P. marginatu (Lindl. in Bot. Reg. 1838, misc. 70.) ; folio obovato bicon- 

 vexo marginulato caule pluries longiore racemo laxo erecto multo breviora 

 apice obsoletissime tridentato, sepalis subfalcatis carinatis lateralibus 

 semiconnatis, petalis linearibus obtusis apice callosis, labello linear! 

 obtuso canaliculate. Guatemala. A very small species with the 



