72 



nata, sepalo inferiore oblongo emarginato superiore ovato obtuso mult5 

 minox'e, petalis linearibus, labello subrotundo membranaceo concavo re- 

 tuso cum ungue producto columnse articulato. Peru. 



24. P. trimcata (Hook. ic. t 55.); folio ovato-lanceolato acuminato racemis 

 geminis eequali, caule pluries longiore, sepalis lateralibus in unum ova- 

 tuni counatis superiore cucuUato duplo minoribus, petalis lineari-oblou- 

 gis, labello truucato involuto. — - Peru. Flowers orange-colour. 



25. P. dijfasa (Poppig & Eudl. Gen. & Sp. t. 86.); caule anguloso folium 

 ovato-oblongum acutum erectum excedente, racemis compluribus longis- 

 simis difFusis, spatha, compressa acuminata brevi, floribus secundis, sepa- 

 lis lat^ ovatis inferioribus ad apicem connatis, labello unguiculato emar- 

 ginato cucullato. Peru. 



26. P. longicaulis ; folio coriaceo anguste oblongo obtuso caule apice alato 

 basi tereti quadruple breviore, spicis numerosis multifloris cernuis folio 

 longioribus, sepalis acutis lateralibus apice liberis basi pariini productis, 

 petalis lanceolatis sepalis duplo brevioribus, labello bilamellato oblongo 



acuto basi angustato acut^ trilobo. Brazil. A remarkable species 



with very long stems, found by Mr Miers. Tlie flowers appear to be 

 yellowish. It is much like PI. rubens, but differs in the form of the 

 petals and lip. 



/ 27. P. plumosa ; folio coriaceo ovah basi baud angustato spica paulo breviore, 

 floribus pubescentibus, sepalo dorsali lineari sub apice intiis convexo 

 lateralibus connatis obtusis, petalis nanis argute inciso-serratis, labello 

 concavo rhombeo-ovato serrulato leviter papilloso, clinandrio serrato. 



Trinidad. (Loddiges no. 13.) Flowers green, with a little purple 



dotting on the inside. The petals have such long delicate fringes as to 

 look like small feathers. 



28. P. sjnralis (L. no. 10. Stelis connata, Presl. Reliq. Hsenk. 1. 103.); caule 

 tereti laxe vaginato folio oblongo sequah, racemo erecto spirali folio lon- 

 giore, bracteis acuminatis, sepalis ovatis obtusiusculis : lateralibus in 

 unum cymbiforme connatis, petalis columna labelloque truncatis nanis. 



Peru. This very curious species, Uke P. hians, has the habit 



and petals of Stelis. 



29. P. triearinata (Poppig and Endl. Gen. and Sp. t. 87.); caule compresso 

 fohum Hneare oblongum obtusatum adeequante, spica solitaria peduncu- 

 lata fohum supcrante, floribus distichis resupinatis, sepalis ultra basin 

 connatis lineari-lanceolatis lateralibus ad apicem concretis margine revo- 

 lutis tricarinatis, labello unguiculato oblongo. Peru. 



ft TrisepalsB. 



30. P. stenopetala (Lindl. in Bot. Reg. 1838.); folio oblongo apice rotundato 



basi in petiolum planum angustato racemo multo breviore caule longiore, 

 bracteis membranaceis cucuUatis, sepalis acuminatissimis linearibiis intus 

 pubescentibus omnibus fere liberis, petalis nanis obtusis dorso carinatis 



labelloque oblongo conduplicato glabris. Brazil. ^A pretty species 



with long slender cream-coloured flowers. 



31. P. sclerophylla (Lindl. in Bot. Reg. sub t. 1797-); foho oblongo petiolato 



obtuso carnoso racemis multo breviore, bracteis ovatis cucullatis, sepalis 

 acuminatissimis omnibus fere liberis, petalis nanis obtusis, labello ob- 

 longo conduplicato apice piloso-glanduloso. Brazil. 



32. P. arbuscida ; caule erecto ramoso folioso vaginis striatis vestito, foliis 

 ovalibus mucronatis in petiolum brevem angustatis, spicis solitariis sc- 



