Oreiostachys, genus novum, a J. S. Gamble. 329" 



2. Oreiostachys Pullei Gamble, 1. c, 1. c. 



Suffrutex scandens 10 m altus (fide cl. Pullep, culmi inter nodos 

 maxime fistulosi; nodi annulati; pseudophylla straminea, scabra, or longe 

 flmbriata, apiculo brevi. Folia tenuiter membranacea, lineari-lanceolata. 

 apice longe setaceo-acuminata, basi inaequaliter, cuneata, margine et 

 apice scabra, supra laevia infra paullo asperula et ad costam prope basin 

 villosula, 12—20 cm longa, 1 — 3 cm lata; costa subtus lucens, nervi 

 utrinque 5—8 haud conspicui, nervulis transversis perobscuris; vaginae 

 glabrae striatae, apice ciliis paucis albis rigidis munitae; ligula longius- 

 cula puberula serrata. Inflorescentia in culmis florentibus; paniculae ad 

 nodos verticillatae, ramis longis vel brevibus, ad 10 — 12 cm longae; 

 spiculae in ramulis racemosis pauciflorae, acutae, 10 — 15 cm longae, 

 2-3 mm latae, 1-florae; rhachis angulata, sinuata, scabra; bracteae multe 

 foliosae foliis similes sed vaginis majoribus. Glumae vacuae 4—6 sub- 

 coriaceae, ovatae, longe mucronatae, 5 — 15- nerves, nervulis transversis 

 obliquis frequentioribus, dorso scabrae et sub apice albo-villosae; gluma 

 florens vacuis simillima, 12 mm longa 5 mm lata; palea etiam florenti 

 similis et aequilonga, bimucronata, dorso rotundata, ecarinata. Lodiculae 

 3, 1 — 1,5 mm longae, basi cuneatae, apice obtusae, longe albo-fimbriatae; 

 interdum elongatae, spathulatae (an in floribus morbosis?) 7 — 8 mm 

 longae, longe ciliatae. Stamina 6; filamenta longissima; antherae 

 7- 7,5 mm longae. Ovarium 1 — 2 mm longum, glabrum; stigmatibus 

 plumosis plerumque plus minus coalitis. Caryopsis non visa. (J. S. Gamble, 

 msc. 28. I. 1908 in Herb. Acad. Rheno-Traject. et Herb. Acad. Lugd. Bat.) 

 Geographical distribution: Outside Java: unknown. In 

 Java: Only in Western Java, in the Preanger, at an altitude of 

 1000—2000 m. Here only represented by two collecting numbers 1. in 

 virgin forest, probably in 1839 on or near the plateau of Pengalengan 

 (Junghuhn no. 143, in Herb. Lugd. Bat. sub n. H. L. B. 908, 7 — 617 — 

 618 — 619 — 620 — branches which only bear leaves) and 2. in the 

 Wajang-Windoe mountains, near the tea-plantation Malabar in virgin 

 forest, at a height of 1600 m above sea-level (A. Pulle no. 3173 in 

 Herb. Rheno-Traject. Suffruticose, climbing, 10 m high. Spikes dark 

 violet. Flowering without leaves. This species of Bamboo has not 

 flowered for a very long time, according to verbal information obtained 

 locally. Flowering branches collected on June 25, 1906). — Native 

 name: Awi-eueu or Awi-eueul (Sundanese) near Pengalengan. 



This species is phyto-geographically very interesting, because 1. 

 this monotype represents a genus, which according to Gamble (see 

 above), is more nearly related to the genus Sasa Shibata, occurring in 

 Japan, but absent from the Malay Archipelago, than to the other genera 

 of Gramineae-Bambuseae, represented in the Archipelago by numerous wild 

 species; 2. because in Java, according to my numerous journeys, nearly 

 all wild-growing Bambusaceae only occur below 1600 m, while Oreiostachys 

 Pullei Gamble, was found growing wild by Pulle 1600 m above sea- 

 level, 3) because this species appears to be endemic in Java, and seems 

 there to be localized in a few mountain regions of the Preanger. 



