22 



GASTROCHILUS. 



• 



Corolla duplici serie 6-fida. Lacini^ interiores cum basi filamenti In tubum coalitae ; inferior sive labellum 

 gibboso-ventricosum. Anthera nuda, loculis obtusis, connective retuso longioribus. 



Systema Linnaeanum, Monandria Monogynia. 



Ordo naturalis, Sc'itamhiece, media inter Alpiniam et Kcempferiam. 



Habitus : Herbai acaules vel caulescentes, radice repente vel fibroso-ramosa, tuberibus subsessilibus, fasciculatis ; 

 spica radica'i vel terminali imbricata ; floribus elegantissimis, nutantibus, tubo longissimo, lobello ventricoso (unde 

 omnen). 



GASTROCHILUS pulcherrima. Tab. 24. 



Caulescens, foliis lanceolatis subsessilibus ; spica terminali secunda, tubo coroUse incluso. 

 Habitat ad Rangoon in sylvis ; floret mense Augusti. 



Radix repens, carnosa, exttis fuscescens, intfis pallida, absque ullo fere sapore vel odore, divisa in articulos subrotundos, pollicares, 

 sursiiin fibras aliquot breves, carnosas, indivisas, deorsiim radiculas plures, fibrillosas emittentes. Tubera plura, cuneiformia, poUicaria, 

 sursiim attenuata, subsessilia. Caules aliquot seriati, ex singulis nempe articulis radicis solitarii, erecti, eylindrici, glabri, pennam cyg- 

 neam fer^ crassi, pedales ad 2-pedales, induti vag'mis sivrnXia, infimis arct^ adpressis, aphyllis, reliquis apice utrinque lobulo obtuso, oblongo; 

 supremis laxiusculis, basin spicse involventibus (unde caulis subclavatus evadit). Folia versus superiorem caulis partem subapproximata, 

 alterna, patentia, subsessilia, 5 — 7-pollicaria, lanceolata, in acumen gracillimum attenuata, basi acuta, planiuscula, subcoriacea, glaberrima, 

 supra nitida, subtiis glauca, costa elevata. Petiolus vix seiniunguicularis, canaliculatus. Spica terminalis, sessilis, oblonga, secunda, 

 attenuato-acuta, 5-pollicaris, basi vaginis summis occulta, antice florifera, posticfe plana et imbricata bracteis erectis, alternis, adpressis, 

 subdistantibus, planis, lanceolatis, acutis, poUicarlbus, viridibus. Rachis carnosa, crassa, planiuscula, dorsi medio a bractearum basibus 

 denudata. Bracte^ interiores 3, oblongo-lanceolatte, acutse, tenuissimse ; harum exterior cum bractea exteriore rachi inserta, interiores 

 pubescentes, infra ovarium adnatee. Flores pauci, secundi, dilute flavicantes, limbo rufo-striati, subdiaphani, glaberrimi, subsessiles. 

 Calyx laxiusculus, oblongus, hinc fissus, ore 3-dentatus, tubo tripl6 brevior. Tubus corolla gracilis, teres, apice incurvus, poUicaris, 

 bracteis pariim brevior. Limbus campanulatus, subtiis gibbosus, fauce levissimfe angustatus, nutans, ferfe pendulus, 6-fidus, poUicaris. 

 Lacini^e conniventes, duplici serie dispositae. Exteriores oblongse, obtusse, lineas 8 longse, leviter concavse, limbo supern^ adpressje. 

 Interiores difformes ; superiores nempe, vel laterales, cuneato-obovatse, obtusse, flavicantes, venulosse, unguiculares, basi contracta insertse 

 dorso filamenti, intra lacinias exteriores decumbentes ; inferior sive labellum campanulato-infundibuliforme, subtus gibboso-ventricosum, 

 limbo pariim porrecto, rufo-striatulo, retuso, intiis nudum, basi angustata filamenti basi accretum. Filamentum breve, limbo inclusum, 

 basi cum limbo interiore concretum in tubulum brevissimum, apice liberum. Anthera oblonga, nuda, loculis connectivo longioribus. 

 Ovarium oblongum, glabrum brevissimfe pedicellatum. Stylus filiformis, basi corpusculis teretibus, flavicantibus lateraliter auctus. 

 Stigma glabrum, convexum, supra antheram vix elevatum. 



The habit of this plant resembles that of an Alpinia, with which genus it also agrees in having a naked anther. 

 But it differs essentially in its 6-parted corolla, having the lobes disposed in two alternating rows, as in Kcempferia. 

 The plant is therefore intermediate between those two genera. Its flowers are very beautiful, and of a most delicate, 

 subdiaphanous texture, pale yellow, with the exterior part of the lip rose-coloured. 



Plate XXIV. Spike seen from the back. 2. A flower, with the interior bract. 3. Two exterior bracts. 4. Flower, with 



the exterior lobes of the border detached. 5. The same, with the border dissected and the calyx detached. 



GASTROCHILUS longiflora. Tab. 25. 



Acaulis, foliis oblongo-cordatis, longe petiolatis; spicis radicalibus ; tubo corolte longissimo, exserto. 

 Habitat m sylvis prope Rangoon ; etiam observavi in Martabania. Floret Auo-usto 



R^Dix constans fibris longis ramulosis, gracilibus, tuberibusque aliquot fasciculatis, cylindricis, pennam cygneam crassis, poUicaribus 

 vel 2-pollicanbus, palhdis, extils nifescentibus. Folia aliquot radicalia, erecta, subbifaria, oblonga, acuminata, basi cordata, lobis sub- 

 distantibus, rotundatis, mterdum maequalibus, membranacea, glab.rrima, supr^ saturate viridia, nitidula, leviter obliqufe plicata, subtiis 

 nX2 ^^^7V;""*%'"'' ""T' ^^'•^'^^^^"*^' 6-8-pollicaria. Petioli limbum folii longitudine fer^ .quantes, crassiusculi, 

 Tpx rll" r . ' T ";;r-q- denticuloacutonotati, deorsum valdfe ampliati, membranaceo-marginati, basique bifarife imbricantes. 

 Spic. circiter6,radicales,sessiles,et basi terra recondit^,glabr^,erect»,cylindraceo.obIong«,attenuat^,3-pollicaL. Bractea dis 



