86 ORCHIDACEM 



DENDROBIUM, Sw. 



D. (§ Sarcopodium) acuminatum, 'Ro\ie,sp.nov. "Rhizome 

 stout. Pseudobulbs elliptical-oblong, very smooth and shining, 

 If inches long, diphyllous, the lower part clothed with large 

 ovate striate sheaths. Leaves subsessile, very coriaceous, ellipti- 

 cal-oblong, obtuse, about 41 inches long, 1\ inches broad. Scape 

 terminal, 1-lf ft. long, 6-17-flowered. Bracts hnear-oblong, 

 obtuse, 7 lin. long. Pedicels 1^ in. long, rather slender. Sepals 

 and petals oblong-linear, attenuate upwards and acuminate at the 

 apex, subequal, about 1^ inches long. Lip strongly three-lobed, 

 7-8 lines long; front lobe ovate, somewhat recurved and very 

 acuminate at the apex ; side lobes broadly triangular-ovate, sub- 

 acute, orange-yellow regularly striped with dark brown. Mentum 

 obtuse, 3 lin. long. Column stout, 2 lin. long. — On Mt. Mari- 

 veles, Lamao River, in the Province of Bataan, Whitford, n. 223. 

 Allied to the Javan D. cynibidioides, Lindl. and D. trifiorwm, 

 Lindl., but readily distinguished from both by its very acuminate 

 segments, and very different lip. The collector describes the colour 

 of the flowers as ^ white and yellow.' The flower more nearly 

 resembles D. Treacherianum, Rchb. f ., in shape, but its colour is 

 very different." — R. A. Rolfe in MS. 



Lamao River, Prov. Bataan, Luzon, May, 1904, Thos. E. Bor^ 

 den (no. 738). 



D. atropurpureum, Miquel, Fl. Lid. Bat. 3 : 644 (1855). — 



Oxystojohyllum atropurimreum, Blume, Rumphia 4 : 41, t. 193 

 (4) and t. 198 (c) (1848) : " f oliis carnosis rectis v. subfalcatis ; 

 labelH limbo retuso ad margines erosulo, tuberculo apicis acute. 

 — Habit. In sylvis litoreis Novae Guineae in arboribus. Caules' 

 4 poll, ad sesquipedales, erecti, foliosi, interdum prohferi, basin 

 versus attenuati et foliorum vaginis tubulosis oblique truncatis 

 aridis striatis fuscis vestiti. Folia erecto-patentia, recta v. sub- 

 falcata, 2-2|^ poll, longa, ensiformia, acutissima, carnosa, flexilia. 

 Flores inter folia e paleis fuscis congestis v. bracteis dilaceratis 

 emergentes, sessiles, mediocres, purpurei, bractea ovata acuminata 



