498 CLXIX. ORCHIDELE. [Epidendrea. 
20. Oreorchis, Lindl. in Journ. Linn. Soc. iii. 26.-—Sepala subsequalia, libera, angusta, 
incurvo-incumbentia, mox patentia. Petala sepalis similia. Labellum sepalis sequi- 
longum, basi col affixum, ecal. tum, ungue erecto, lobi laterales breves, angusti, 
erecti, medius latior, patens, indivisus. Columna elongata, subteres, superne leviter 
clavata, exalata, apoda ; clinandrium parum prominens, truncatum.  Anthera terminalis, 
opercularis, incumbens, valde convexa, 1-locularis; pollinia 4, subglobosa, distincta, 
inappendieulata, anthera dehiscente sepius stipiti filiformi in rostello persistenti affixa. 
Capsula oblonga v. subfusiformis, erostris, costata, reflexa.— Herba terrestris, caulibus 
1-2-foliatis, basi demum in pseudobulbum tuberiformem incrassatis. Folia longa, angusta. 
Seapus ex eodem pseudobulbo simplex, el tus, basi paucivaginat Flores racemosi, 
mediocres v. parvuli, brevissime v. tenuiter pedicellati. Bracte: lineares v. minimse. 
Species edite 4, Himalaymw, Asize Sibiricr et Japonim ineole. 4. Gray in Mem. Amer, Acad, ser. 
2, vi. 410, — Regel, FI. Ussur. Tent. 160, t. 11. 
21. zHexalectris, Hafin. Neogen. 4.—Sepala sub:equalia, erecta v. subpatentia, libera, 
postieum ineurvum, lateralia leviter faleata. Petala sepalis subeonformia. Labellum a 
basi column:e erectum, basi contractum, sepalis :equilong, .bovatum, lobis lateralil 
brevibus suberectis. Columna longiuseula, erecta, incurva, semiteres, superne anguste 
2-alata, apoda ; clinandrium obliq , postice elevatum, obtusum, concavum, integrum. 
Anthera int inalis, op laris, i bens, convexa, distincte 2-locularis, loculis 
imperfecte 4-locellatis. Pollinia 8, cerea, in quoque loculo 4, sub-9-seriatim fasciculata, 
Ovoidea, acutiuscula, sub:equalia, apicibus visco granuloso cohrerentibus. Capsula 
oblongo-fusiformis, reflexa. —Héerba aphylla, rhi te nodoso subarticul 
squamigero. Sceapus erectus, simplex, vaginis brevibus dissitis instructus. Flores in 
racemo terminali sparsi, medi ; breviter pedicellati. Bractes anguste, pedicellum 
ssepius superantes. 
Species 1, civitatum australium Americs borealis et Mexiei incola. Blume, Orch. Jav. 18, t. 6 
(Bletia aphylla, Nutt. Gen. Pl. N. Amer. ii. 194). 
Genus potius Corallorhize quam. Bletie affine, a priore differt polliniis 8 visco granuloso copio- 
siore, ab hae habitu, et polliniis more Lipariearum fasciculatis nec ut in letieis discrete 2-seriatis. 
22. Dendrobium, Swartz in K. Vet. Acad. Stockh. IN: ya Handl. xxi. 944. (Ceraia, Lour. 
FI. Cochinch. 518, ex Lindl. Callista, Lour. l.c. 519, ex Reichb. charactere utriusque generis 
imperfecto. Desmotrichum, Blume, Bijdr. 329, t. 3D. Pedilonum, Blume, l.c. 390, t. 36. 
Onychium, Blume, l.c. 393, t. 10.)—Sepala subsquilonga, posticum liberum, lateralia 
basi obliqua pedi columnse adnata, mentum nunc breviter gibbiforme nunc longe caleari- 
forme formantia, superne libera v. rarius altius connata. Petala sepalo postico 
zquilonga v. rarius paullo longiora v. breviora, swpe apgustiora, interdum latiora. 
Labellum ad apicem pedis col , basi tracta at rarius articulata, in pedem 
incumbens v. ei adnata, supra basin in lobos latos columnam amplectentes v. angus- 
tiores patentesque utrinque expansum, v. lobis obscuris v. obsoletis integrum, apice 
in laminam pat it; v. latissi planam v. calcei- 
formem acutam obtusam v. retusam exp ; disco szepe longitudinaliter 2-3-lamellat 
Columna breviuscula v. brevissima, apice plus minus 2-alata v. 2-brachiata, basi in pedem 
ssepe longiusculum producta ; clinandrium antice 2-angulatum v. in dentes 2 breves pro- 
ductum. Anthera terminalis, opercularis, incumbens, convexa obtuse conica v. cucullata, 
2-locularis ; pollinia 4, cerea, ovoidea v. oblonga, obtusa, a latere compressa, per paria in 
loculis collateralia v. plus minus cohzrentia, wqualia v. cujusve paris inzqualia, inap- 
pendieulata, libera. Capsula ovoidea v. oblonga, rarius elongata, erostris.— Herbs 
epiphytice. Caules v. ramuli floriferi csespitosi v. sepius secus rhizoma v. caulem 
repentem ad axillas vaginarum, simplices, l-co-foliati, nune brevissimi v. in pseudo- 
bulbum brevem incrassati, nunc elongati, tenues v. varie ad basin v. superne carnoso- 
incrassati. Folia vária, szepius coriacea v. carnosa, non plicata. Flores speciosi v. rarius 
parvi, racemosi, racemis simplicibus elongatis laxisque v. brevibus densis v. ad flores 
TL 
