- 100 - 



axili undique affixae, nunc 12-14 quorum tarnen pleraque obsolescentia. 

 Stylodia 2,5 mm. longa. Calyx spatliaeeo-tubulosiis 3 nervis, tridentatus, 

 dentibus ciiiatis, 5 mm. longus. Corollae tubus 50 mm. longus. Petala ovato- 

 oblonga obtusiuscula, iininervia, subobliqua, 10X4 mm. longa. Pet. dorsale 

 cucullatum apiculatum anticis multo latius; labellum obovatum (insingulo 

 specimine projecto) profunde bipartitum (in aiabastro integrum emarginatum), 

 lobi semi-obovati, margine interiore venis rectis parallelis 2 cum tertio 

 divergente, numerosis tenuioribus flabellatis, pertensi, 14X6 mm. longi. 



Staminodia obovata rotundata petaiis cire aequilonga labello breviora. 

 Stamen exsertum circ. 5 mm. longum filamento brevissimo, antherae thecae 

 breves teretes, rimis déhiscentes crista ipsi longiore, lata recurva. Stigma 

 cyathiforme compressum altero margine ciliatum. Fructus ignotus. 



This species differs from all other Gastrochilus which I examined by 

 the Kaempferia-Wke lip, and herein and by the solitary leaf it seems rather 

 near to G. bilobiim Ridl. and G. oculatum RidI, differing from both however 

 by the inflorescence, the shape of the leaf etc. By its habit it resembles 

 Haplochorema decus sylvae; but because of the three-celled ovary it cannot 

 be reduced to that genus. 



By the habit and inflorescence it seems to be nearest to G. ^/'û/jrf//o/////7î. 



Habitat: Borneo, Selebulan. Teputing, leg. Nieuwenhuis n. 872. (1896-97). 



Gastrochilus laxiflorum Val. n. sp. Tab. nostra 13. 



Herba parva, subacaulis, glabra, Rhizoma verticale articulatum, radices 

 numerosos filiformes teretes horizontaliter repentes ex quoque nodo produ- 

 cens. Folia numerosa subradicalia, longe petiolata, vaginis petiolis breviori- 

 bus latis membranaceis, ligulis ovatis, brevibus. Laminae lanceolatae acutae, 

 basi acutae vix decurrentes, petiolis cum vaginis paullum longiores, perga- 

 maceae, costula subtus prominente, ceterum subavenes vel minute per longi- 

 tudinem striatae. Spica elongata, laxe bracteata, radicalis pedunculo gracili, 

 vagina folii subincluso, petiolo longior. Bracteae florigerae remotae baud 

 imbricantes nunc circ. 7, cymbiformes, dum explanatae lanceolatae, acutae, 

 40 mm longae 10 latae, subcoriaceae (coloratae ?), 3-7-florae. Flos parvus 

 bractea brevior, lateraliter protrudens, bractea secundaria primariae simili 

 sed tripio minore basi involutus, bracteolis binis minutis late obovatis mu- 

 cronatis florigeris) comitatus. Calyx late tubulosus supra medium spathaceus 

 unidens vel bidens. Corollae tubus calycem plus dupio superans, petala 

 lanceolata, acuta tenuia parva avenia, dorsale mucronato-cücullatum. Label- 

 lum obovato-cuneatum, parte superiore suborbiculari apice ad - 1/3 incisum 

 parte inferiore in unguem canaliculatum longe attenuata, centro linea hirtella 

 non praeditum; petaiis duplo longius, in sicco antice convexum. 



Staminodia oblonga apice rotundata, in flore adulto exsiccato petaiis 

 simillima, in aiabastro petaiis multo breviora. 



