54 EuphorbiaceCE . \Agrostisiachys. 



25. DIMORPKOCAIiYX, Tlnu. 



A small tree ; 1. alt, with stip. ; fl. dicEcious (very rarely 

 moncEcious), moderate-sized, male in clusters on old wood, 

 fern, solitary or 2 or 3 together, terminal or leaf-opposed ; male 

 fl. . — cal. cup-shaped, shallow, membranous, nearly truncate 

 or with 5 very shallow segm. or teeth; pet. 5, erect, recurved 

 in upper part, imbricate; stam. 10, in two rows, outer shorter, 

 fil. connate below into a column ; disk of 5 scale-like glands ; 

 pistillodco; fem. fl.: — cal. large, divided nearly to base into 

 5 oblong-lanceolate, obtuse segm.; pet. as in male, but rather 

 larger; ov. 3-celled, with one ovule in each cell; disk annular; 

 styles 3, bifid ; fr. a capsule, of three 2-valved crustaceous cocci, 

 surrounded at base by persistent cal., capped Avith styles ; 

 seeds ovoid, testa crustaceous, endosperm fleshy, cotyledons 

 broad, flat. — Sp. 5; all in FL B. Ind. 



D. g-labellus, 77/71/. £■;/«;//. 278 (1861). 'Weliwenna, 5". T^n- 

 tukki, T. [l^LATE LXXXIV.] 



Trigonostemon Lawianus, Muell. Arg. in DC. 1. c. 1 105 (in part). C. P. 

 1046. 



Fl. B. Ind. V. 403. 



A small, much-branched tree ; twigs slender ; bark cin- 

 namon-grey ; young parts glabrous ; 1. 3-4^ in., lanceolate or 

 oblong-lanceolate, tapering to base, acuminate, subacute, entire 

 or slightly repand-dentate, glabrous, dull dark green, paler 

 beneath ; petiole A in.; stip. small, triangular; fl. few, stalked; 

 cal. -segm. of male much shorter than pet., of fem. much 

 longer than pet., rather unequal, parallel-veined, each with a 

 rounded gland on back at apex ; fr. under h in., pubescent. 



Dry region; very common. There are also specimens in the Her- 

 barium from Galle and Kalutara in the moist region. Fl. July, Aug.- 

 Feb. ; white. 



Also in S. India (?). 



The male and female fl. are so different that the plants are constantly 

 collected as different species. The young branches are often strongly 

 ridged with thick lines of cork. Very near D. Lawianus^ Hk. f. of 

 Western India ( = /A glabellus^ Bedd. in Trans. Lin. Soc. xxv. t. 26, 

 reprod. in Fl. Sylv. t. 273), but I think distinct. 



26. AGROSTZSTACKYS, Dah. 



Shrubs or small trees ; 1. simple, thick, erect, strongly 

 pcnniveined ; fl. small or minute, dioecious, in small spikes or 

 long racemes; male fl. : — solitary or in .small clusters, globose ; 



