132 



Description of Fig. 8 (B-L) (p. 131). 



B. Cymules clustered at the ends of branchlets ; X 4. 



C. A typical cymule with its subtending bract, B ; the terminal female flower was 



incompletely developed, a, b, lateral bracteoles, each subtending- a female flower 

 the lateral bracteoles of which (a', b' in fig. D) subtend each a male flower the 

 four male flowers indicated; the stalk of each of these male flowers bears a pair of 

 minute bracteoles, each of which subtends an undeveloped male flower with a 

 lateral bracteole. The apex of the inflorescence and the bracteoles a and b are 

 pushed forward away from the axis, x 15. 



D. Diagram of same. 



E. Male flower, with dehiscent anthers ; X 4. 



F. Stamen ; X 15. G. A stamen taken from a bud, showing the umbo-like dorsal 



connective ; X 15. 

 H. Female flower ; x 15. 



I. Young stigma, covered by the ring of inflexed setae. 

 J. Mature stigma. I and J, x 40. 

 K. Fruit, showing detached upper part of exocarp (a), endocarp containing seed (b), 



and cupule (c) ; X 8. 

 L. Ovule : X 20. 



SANTALACE^S. 

 EXOCAEPUS sp. ? 



Arfak Mts., Koebre ridge, common in forest undergrowth from 8000- 

 8500'. Veg. 5617. 



A leafless parasite, with dark green, rigid, flattened, much branched 

 shoot?, about 1 m. high. The cladodes are 5 mm. broad, showing swollen 

 round scars alternately up the nodes, on which the flowers are evidently 

 borne in fascicles. I am indebted to Mr. S. Moore for this determination, 

 but, as he points out, in the absence of flowers or fruit the genus must 

 remain uncertain. 



HENSLOWIA UMBELLATA Bl. Mus. Bot. Lugd.-Bat. i. (1850) 243 = //. Rein- 

 wardtiana Bl. cf. Koords, Excurr-ionsfl. Java, ii. 168 ; Schum. & 

 Laut. 300; Nova Guinea, viii. (1910) 287 ; Ridl. in Trans. Linn. 

 Soc. ser. 2, Bot. ix. (1916) 146. 



Arfak Mts., Koebre ridge, open summit, 9000'. FL, <J ? . Dec. 5623. 

 JDistrib. New Guinea (D.S.W., Noord River, Versteec/ ; Mt. Oarsteusz, 

 Kloss ; N.E.). Java, Sumatra, Central and Eastern Himalayas. 

 A saprophyte with yellow foliage and flowers. 



HENSLOWIA CRASSIFOLIA Gibbs, sp. nov. 



Frutex epiphyticus ; ramuli graciles, apice interdura volubile, angulati. Folia 

 petiolata, parva, ovata, apice apiculata (apiculo demum incurvato), basi acuta, 

 margine incurvata, lamina demum convexa, crasso-coriacea, in sicco nigrescente- 

 rugosa, nervis inconspicuis. Flores 4-5-meri, axillares, sessiles, bracteis minutis, 

 triangularibus stipati. Flos <$ perigonium 4-fidum ; lobi triangulares ; stamina 4, 

 filamenta brevia, antherae loculis didyinis. Flos $ perigonium 4- 5-fidum ; lobi 



