ORCHIDEX RECORDED FROM BORNEO. 299 
THRIXSPERMUM BORNEENSE, mihi.—Sarcochilus borneensis, 
Rolfe in Illustr. Hortic. xxxix. (1892) p. 99, t. 161. Borneo 
(Low in Herb. Kew). 
T. LONGICAUDA, sp. nov. 
Caulis eo T. lilacin? similis, elongatus validus teres, internodiis 
13-2 pollices longis. Folia 1j-2 pollices longa, pollicem lata, 
oblonga elliptica obtusissima, vaginis costatis. Pedunculi ultra 
:6 pollices longi patentes, bracteis ut in 7. lilacino. Flores 
lis T. Arachnitis similes sed majores, pedicellis 2 poll. longis 
Sepala ad bases lanceolata longe caudata, 3-pollicaria. Petala 
.angustiora equilonga.  Labellum stipitatum vix pollicare, lobis 
lateralibus falcatis obtusis, medio ovato acuto, callo nullo. 
Sarawak, on limestone rocks (Havilana). 
Anally of T. Arachnites, Reichb. f., from which it differs in the 
elongate stem and much longer sepals and petals. From 7. Scopa, 
Reichb. f., it is distinguished by the size of the sepals and 
petals and by the smooth lip without any callus. 
T. AnaCHNITES, Reichb. f. Xenia Orch. ii. p. 121. Sarawak 
(Haviland). 
ACRIOPSIS JAVANICA, Reinw. ex Blume, Gew. Buitenz. p. 97 ; 
Bijdr. p. 377. Sarawak (Haviland !). 
A. PURPUREA, Ridl. in Trans. Linn. Soc. ser. IL, Bot. ii. 
1893) p. 406. Kuching, Sarawak (Haviland !). 
THECOSTELE ZOLLINGERI, Reichb. f. in Bonplandia, v. (1857) 
p. 97. Sarawak (Haviland !). 
T. SECUNDA, sp. nov. 
Pseudobulbi congesti ovoidei oblongi, olivacei, costati et 
canaliculati curvi paullo compressi, 11 pollices longi, pollicem lati. 
Folia tenuiter coriacea atro-viridia, 8 pollices longa, 1} pollices 
lata, lanceolata subacuta carinata et canaliculata. Scapi breves, 
.3-pollieares, penduli. Flores circiter 10 mediocres, secundi. 
Bracteæ ovate appresse purpurascentes, ¿-pollieares. Sepalum 
posticum curvum gibbosum acutum cymbiforme, flavescenti- 
viride, apice rufescenti, lateralia lata ovata acuminata, } poll. 
longa, 3 poll. lata, viridia, fasciá singulá rufa ad basin. Petala 
linearia lanceolata acuta viridia, fasciis tribus rufis. Labelli 
unguis planus, apice latior, hie abrupte flexus albis margini- 
bus; lobi laterales oblongi rotundati erecti, marginibus incurvis 
