ORCHIDACEM 173 



wine color, ^ in. long, almost terminal, clusters 2-3, fragrance 

 very slight, "apple," common in swamps near beach, Prov. Davao, 

 Mindanao, August, 1906, Rev. R. F. Black (no. 27). — Low tree 

 in swamp, Selonay River, Mindoro, October 8, 1906, M. L. Merritt 

 (no. 5320). 



Hainan, Burmah, Siam, Malay Peninsula, Borneo, New Guinea. 



D. (§ Pedilonum) BURSIG-ERUM Lindley Journ. Linn. Soc.3 : 

 17 (1859) ; Miquel Fl. Ind. Bat. 3 : 642 ; Reichb. f. Gard. Chron. 

 n. s. 17: 424 (1882); FOrchidophile 2: 421 (1882); Naves Nov. 

 App. 233 ; Vidal Plian. Cum. Phil. 148 and Rev. PI. Vase. Fil. 

 267. — Callista bursigera Kuntze Rev. Gen. PL pt. 2, 654 (1891). 

 — Dendrobium secundum var. bursigerum Ridley Journ. Linn. 

 Soc. 31:271(1896). 



"Foliis oblongis acutis, spicis cylindraceis densifloris, sepalis 

 petalisque acutis, mento arcuato infra apicem ventricoso, labello 

 spathulato acuto cucullato." — Lindley, I. c. 



Stems 2-3 dm. high, elongated, fusiform, leafy. Leaves elliptic- 

 oblong, 7 cm. long, 2-2.3 cm. wide. Flowers in slender racemes, 

 uniform lilac with yellowish lip. Racemes 1.6 cm. long. Mentum 

 or spur 6-7 mm. long, equalling the pedicel and ovary, obtuse. 

 Lateral sepals oblong, acute. Upper sepal similar, 4.5 mm. long. 

 Petals oblong-lanceolate, 3-nerved, about 5 mm. long. Free por- 

 tion of the labelhmi lanceolate, its anterior margin involute. 



D. bursigerum is clearly related to, if not conspecific with, D. 

 secundum Wall. 



Prov. Rizal, Luzon, March 31, 1905, Maximo Ramos. — 

 Flowers pink, alt. 300 ft., Lamao River, Mt. Mariveles, March 7, 

 1904, R. S. Williams (no. 765). — Camp Keithley, Lake Lanao, 

 Mindanao, September-October, 1906, Mary Strong Clemens. 

 Merrill's specimen agrees with the type specimen in Lindley's 

 herbarium at Kew. 



Borneo. 



