598 



AMES. 



develop. This characteristic is frequently misleading and not unlikely to cause 



Confusion. Tlio leaves of the specimens from Luzon measure 6.6 cm in length 

 and 1.6 cm in width. 



The collector's notes state that the plants were found at an altitude of 

 1,400 m and that the flowers are white and fragrant and verv ornamental. 



DENDROBIUM Bw. 



D. hymenanthum Beiclib. f. in Bonplandia 3 (1866) 222; Walpers Annales 

 Botanices Systematicae 6: .'502. 



Tins very rare species whicli was among the novelties secured by 11. ('tuning 



(no. 21S6) in the Philippine Islands lias been twice collected by the botanists of 



I he Bureatl of Science. It is closely related to Dendrobium Micholiteii Rolfe 

 icf. Ames Orchidaceae 1: 41. /,/. 11). The stems are yellow, about 8 cm long, 

 quadrangular, very -lender, bifoliate at the summit, with the oblong-elliptic 

 leaves 2-3.6 cm long, 8 mm wide. The ilowers. which are home at the summit 

 of the stem, are fragrant; the mentum is tinged with "purple" outside. Pedicels 

 slender, subflliform, about 2 cm long. Lateral sepals triangular, acute, prolonged 



into a stout, curved, obtuse nientnm; from tip of sepals to tip of meiitmn 10 

 nun long. Upper sepal lanceolate, 7 mm long. Petals similar to the upper 

 sepal, hnt narrower, .1 mm long. Labcllum about 2 cm long, somewhat oblan- 

 ceolate. dilating gradually from the cuneate base to the rounded. 7 mm wide 

 apex; mar the apex is a small crest of short, yellowish hairs. 



The director of the Royal Botanic Gardens at Kew has very kindly compared 

 my material with the Cuming specimen preserved in the Kew Herbarium and has 

 assured me (hat the specimens collected by Uamos are eonspecilic with the Cuming 

 plant. 



Montalhan. Province of Ri/.al. Luzon. \V. Schultze. May, 1906, Bur. Svi. :>t;i<>: 

 Maximo Ramos, duly 2D, 1907, Bur, Soil $035. According to RamOS the (lowers 

 last a very short time. 



NOTE, From an excellent photograph which accompanies the plants collected 

 by Ramos it appears that the flowers are produced singly at the summit of the 

 stem. 



D. epidendropsis Kriinzlin in Orchis 2 (1908) 79, fuj. 



The material which 1 have identified as D. epidendroptia was collected by W. S. 

 Lyon (no. 118). Although a native of the Philippine Islands the exact locality 

 from which Mr. Lyon's plant came is not known. Mr. Lyon flowered it in his 



garden in November, 1908. lie described the Bowers as greenish-yellow, coriaceous 



in texture, wax-like, and both within and without glotsy as if varnished. A 

 Single leaf, and what appears to he an undersized stem and three flowers constitute 

 the specimen at hand. The leaf is ohlong lanceolate. 7 cm long. I .."» cm wide, 

 subcoriaceous. The stem is fusiform, clothed with several scarious sheaths, at 

 the summit is a short raceme, 2 cm Ion,-, which bears three 3 cm long Mowers. 

 The flowers are conspicuous because of the long SUbfalcate mentum which is 2 cm 

 long and about 3 mm in diameter. 



In the herbarium of the Bureau of Science there are three specimens which 

 agree with my interpretation of Dendrobium epidendropsis. Two of these were 

 collected on Mount Mariveles. Province of P.ataan. The third specimen was 

 taken in the Province of Kizal. 



Lainao River, Mount Mariveles, Province of Balaam Luzon, growing on trees on 

 exposed ridges, at an altitude of 908 m. Sower odorless, lip bright, pale-green, 

 petals pale-green with 3 or 4 brown stripes from base to tip. December 10. 1904, 

 T. E. Borden. For. Bur. 8109; near same locality, on trees, flowers yellow with 



