ORCHIDACE.E 



as Schoenorchis, Sarcanthus, Robiquetia, and Pomatocalpa are 



so obscure that it is sometimes impossible to ascertain to which 



one a given species may belong. 



To Sarcanthus bijidus I refer the following specimens: 



Leyte, Dagami, C. A. Wenzel 0134, March 9, 1913. On trees at medium 

 height, 60 meters above sea level. Flowers purple, white, and yellow, 

 odorless. Ormoc, C. A. Wenzel 058, December 30, 1912. Mindanao, 

 Province of Agusan, Cabadbaran, Butuan Road, C. M. Weber 181, 

 August 5, 1911. Magugaum, Agusan River, Weber 11$, June 12, 1911 ; 

 Tagabaca, Weber 138, June 2, 1911. District of Cotabato, Libongan 

 Creek, Weber 209, August 20, 1911, Weber 204, August 19, 1911. 

 Luzon, Laguna Province, J. S. Serrato s.n. (Hb. Ames 13662), Septem- 

 ber, 1912. Mindoro. 



2. Sarcanthus dealbatus (Lindl.) Reichb.f. in Walp. Ann. 6 : 

 892. Cleisostoma dealbatum/^W/. in Bot.Iteg. (1843) Misc. p. 5. 

 Herba epiphytica. Caules 1.5-4.5 dm. longi, penduli vel arcuati, 

 internodiis 1.5 cm. longis. Folia linearia, acuta, valde carnosa, in 

 sicco ut videtur teretia, sed vere plana, elongata, ± 2 dm. longa, vix 

 1 cm. lata, in sicco valde rugosa, ad apicem subulata et fragilis, 

 vaginis persistentibus caulem obtegentibus. Vaginae internodiis 

 aequilongae vel longiores, rugosee, in longitudinem striata?, usque 

 ad 3.5 cm. longa?. Pedunculi subsimplices vel ramosi, multiflori, 

 folia aequantes vel excedentes, ±1.5 dm. longi, graciles, glabri, 

 infra racemum pauci-bracteati,bracteis tubularibus, oblique trun- 

 catis. Racemi usque ad 1 dm. longi, laxiflori, saepius ramis alter- 

 nis. Flores mediocres e basi sacci usque ad apicem sepali dorsalis 

 vix 1 cm. longi. Bracteae inflorescentiae minuta? acuta?. Pedicellus 

 cum ovario circiter 4 mm. longus. Sepala lateralia spathulata, 

 obtusa, vix 4 mm. longa, prope apicem 2 mm. lata. Sepalum dor- 

 sale subsimile, acuta. Petala oblonga, leviter falcata, subacuta, 

 3 mm. longa, 1.5 mm. lata. Labellum crassum, trilobatum, cal- 

 caratum, basi margine postico loborum lateralium pedi gyno- 



[ 247] 



