620 ORCHIDES. 



LLISIA. 



Sepals and peuils yellowislj greeii. Lip pale gieen , painletl wilh purple , antl 

 Learing some resemblance to an Ophrys. 



Hiic?: Birchea A. Rich. in Ann. sc. nat. 1841. N. S. XV. p. 66: 

 Calyx subrinpens, sepiila exlerna libera snbaequalia, linearia, inlerna 

 pnulo iongiora, Jabelluni sessile, carnosum, ecalcaratum, oblongum, su- 

 perne canaliculatum apice bifidiim. Columua brevis aptera. Pollinia 2, 

 intepra, laniina pellucida lata, apice superne replicala et altera lamina 

 glandulosa ovali angulatim terminala insidtntia. 



IJerba epiphyta. Caulis leres. foiiosus. Foiia terelia. carnosa, basi vaginantia , de- 

 cidua, Flores albi in spicam oppositifoiiam, brevem. paucifloram dispositi. 



Ex tab. analyiica Lindl. csl Adenoncos Blume. Scd diftert ab Adenonco petalis 

 majoribus, polliniis 2, appendice sligmaiica caudiculara terminante, lateri afflxa. 



Dr. Birch med en chef a la residence d'Oiacamund aux JNilgherries. 



Divchea teretifolia A\\. 1. c. tab. 10. Radix parasitica, fibris crassis, longis, tere- 

 tibus, glabris. simplicibusque constans. Caules plures ex eadem radice, tereies, gra- 

 ciles, simpiices, pedales et ultra, foliis aul vaginis foliorum elapsorum persisientibus 

 omnino vestiii. Folia alterna approximata . basi vaginanlia, teretia , carnosa , 3— 5" 

 longa. apice acuta. superne sulco longitudmali notata. diamctro ne sesquilineam lata, 

 decidua. V<iginae tflbulosae, caulem ampiectentes , substriatae, persislentes. Florcs 

 albi, spicam e vagina folii erumpenlem, opposiiifoliam 3—5 lloram, brevissimam elfor- 

 mantes. Hhacbis crassa, brevis, vix semiunciam longa. Bracteae ad basin singulgrum 

 Jlorum subsessilium parvulae , squamaeformes . subconcavae. crassae , subovales, 

 acutiusculae , persisientes. Calycis sepala cxterna erecta, aequalia , lanceolalo-subli- 

 nearia, obtusa; duo interiora laieralia paulisper longiora. lineari obiusa, subtrinervia, 

 omnia libera. Labellum sepalorum inleriorum longitudine , oblongum subangusturo, 

 plano-subcanaliculatum, basi vix biauriculalum, sessile, apice bifidum , lobis obtusis 

 margine subsinuosis. Columna brevis, aptera. apice antice subbiloba, sligma crassum 

 faciem aniicam subconcavam columnae occupans. Anihera terminalis operculiformis, 

 postice obiuse ei appendice subcristaeformi obtusa noiaia , antice plann, subtransver- 

 salis, et api^endici stigmatico-glandulosae (stigma superanli) applicata. Pollinia 2 sub- 

 ovoideo-globosa iniegra, insidenlia in hunina (caudicula) membranacea, tenera, trans- 

 lucida, e duabus partibus constanli, una plana, ovali, horizontali, basi superne repli- 

 ciiia ct alteram paulo minorem , superne glandulosam et appendicem sligmaiicam 

 efformanlem gerenti. — In vailibus calidis sylvaticis circa Avalanchy. Nilgh. Perotlet. 



Obs. Haec addidi praecipue cum planlam et flore albo , et labello anguslissimo 

 forsan specie a Louisia tenuifolia recedere puiem. Rchb. 111. 



Wight Ic. pl. Ind. Or. IIL n. 911. (1844): Cymbidium triste VV. dilBcult to dry. 

 Hence Dr. Lindley seems imperfectly acquainied wiih it having only bad a bad 

 worm — eaten specimen to examine. I cannot however understand on what principle 

 the racemes of this nnd one or two allied species are called umbeis. They are 

 short, bul disiinctly racemose. Another peculiarily of some species of the section of 

 ihis genus to whiih ihis belongs is the form of ihe lip, a hollow inflated sack. — 

 Serius a cl. Wight pro Cynibidio leiiuifolio declaratur. Ic. V. (Ibol). 911. Cymbidium 

 lcnuifolium W. Cyrnbidium Iriste l\. W. Ic. : leaves subcyliiidrical (terete), umbels 

 subsessilc, sepals Jinear-obiuse . spreading, mucronate below the^point; shorter than 

 the oblong. linear, obiuse. subfalcaie peials nnd lip; lip oblong, concave , with three 

 caiiosiiies on ibc disk . auricles at ibe base . membraiiaceous, twolcbed at tbe base, 

 sepals yellowish green , lip purple . streaked with paler lincs. Branches of trees. 

 Eastern slopes of Neilgherries and lyamally Ilills. July — October. 



5. LUISIA TRICIIORRIIIZA Blume Mus. 63. Lindl. 1. c. sub 4; 



L. racemo paucifloro, petalis sepalo dorsali parum longioribus , se- 

 palis laleralibus alle carinalis, iabello convexo oblongo rotundato basi 

 biouii supra basin interrupto, radicibus junionbus pubescenlibus. 



