Bcilrage zur Keiiiitnis der Flora und Pflanzengcograpliie von Borneo. I. 533 



loflorescentia simpliciter pedicellata; pedicelli axillis foliorum solitarii, 

 foliis subaequilongi, graciles, erecti. Flores ad 1,5 cm cxpansi, albi. 

 Sepala 2, ovata, acuminata, 6— 7 mm longa, 3— 5-nervia. Vexillum 

 oblate trigonum, angulis rotundatis, 12 mm latum, costa dorso carinato, 

 carina medio incrassata apiculata. Alae sessiles, 12—14 mm longae: 

 lobus basalis obovato-oblongus, apice retusus; distalis duplo major, late 

 obcordatus; auricula dorsalis obscura. Labelli limbus scaphiformis, as- 

 cendens, fere erectus, ovatus, acuminatus, 6 — 10 mm longus; calcar gra- 

 cillimum, pendulum, 3 — 3,5 cm longum. Filamenta brevia, subulata; 

 antherae minutae, connatae. Ovarium ovoideum, obtusum. Capsulae 

 12— 13 mm longae, anguste ovoideae, fere rectae, vix stipitatae, obtuse 

 rostratae, polyspermae. Semina minima, 1,5 mm longa, pyriformia, 

 compressa, laevia, atra. 



Borneo austro-orient.: inter Kumam et Salinahu (WmRLER n. 2939, 

 Julio fl.). 



/. Hubcrti is most nearly allied to 7. Blufnct Zoll. el Morr., from Java, a much 

 smaller flaccid species, with shortly petioled leaves and pilose seeds nearly twice 

 as large. 



I. orthosepala Hook. f. n. sp. 1. c. — Ilerba erecta, gracilis, gla- 

 berrima, parviflora, caule ramoso rigido, ramis ramulisque erectis. Folia 

 4 — 5 cm longa, opposita et alterna, petiolata, firma, ovata, acuminata, 

 spinuloso - serrulata, subtus pallida , basi breviter in petiolum gracilem 

 1 — 3 cm longum angustata, nervis utrinque 3 — 4; glandulae infrapetiolares 

 niinimae, setaceae vel 0. Inflorescentia simpliciter pedicellata; pedicelli 

 foliis subaequilongi, solitarii, gracillimi. Flores ad 2 cm expansi, lilacini. 

 Sepala 8 — 11 mm longa, anguste ovato-lanceolata, longe acuminata, 

 stricta, 5--nervia. Vexillum magnum, oblate trigonum, angulis rotundatis, 

 ^2 mm latum, costa dorso tenue apiculata medio paullo incrassata. Alae 

 sessiles, 12 mm longae; lobus basalis obovato-oblongus, apice retusus vel 

 subbilobus; distalis triplo major, late obcordatus; auricula dorsalis 0. 

 Labelli limbus scaphiformis, lanceolatus, fere erectus, acuminatus, 1 

 ^2 cm longus; calcar gracillimum, 4 — 4,5 cm longum, dependens. 



Borneo austr.-orient.: inter Sungai Tarik et Kwaru, secus ripas 



(W 



The specimens described are scanty and imperfect, but the species is so distinct 

 from any known to me that I have not hesitated to describe it. It is clearly closely 

 allied to /. Huberti, with which it precisely accords in the form of the wings, but in 

 **e size of the vexillum and form of the sepals they widely differ. 



Winkl 



Herba humilis, robusta, gla- 



I- 



[. 



l^errima, Ooribus mediocribus, caule zb \ m alta simplice 2—3 cm crasso 

 carnoso. Folia ampla, 1—1,3 cm longa, alterna, petiolata, exsiccata 

 ''lembranacea, late ovata, cuspidata, minute serrulata, basi acuta, nervis 

 utrinque 10—15, petiolo crasso 6— 10 cm longo; glandulae infrapetio- 

 lares 0? Inflorescentia simpliciter pedicellata; pedicelli solitarii, graciles, 



