588 XCVIII. EUPHORBIACE^ [Mallotus 



I. Disk 0, or if present annular or cupular. Seeds without a fleshy coat. 



A. Capsule echinate or tubercled. 



(a) L. orbicular or broadly ovate, usually alternate. 



a. L. peltate. 



1. M. albus, Muell Arg.— Syn. M. tetracoccus, Kurz F. Fl. ii. 382; Eottlera peltata, 

 Wight Ic. t. 1873. Vern. Marlei/a, Beng. ; Kukoti, Kan. ; Mulla-polavu, Tarn. ; Pattha, 

 Paral, Mai. ; Petwaing, Upper Burma. Western Ghats, from the Konkan southwards. 

 Outer ranges and valleys of the Sikkim Himalaya, ascending to 3,000 ft., common 

 in second growth forest. Assam. East Bengal. Chittagong. Upper Burma. — Ceylon, 

 moist low country, very common. A middle-sized tree, branchlets, petioles, underside 

 of 1. and inflorescence densely clothed with grey or tawny stellate tomentum. L. 

 mostly alternate, broad-ovate, acuminate, entire or sinuate-toothed, base narrowly 

 peltate, rounded or truncate, basal n. 3-5. Fl. dioecious, in axillary and terminal 

 pyramidal panicles, S : Buds globose J in. diam., anther-cells parallel. 9 : calyx 4-5- 

 lobed, ovary densely clothed with stellate hairs, styles 4-5, densely papillose. Capsule 

 loculicidally 4-valved, white tomentose, with soft conical tomentose protuberances. 

 Seeds black, tuberculate. 2. M. barbatus, Muell. Arg. Tenasserim. Malay Penins. 

 Konkan (doubtful). Branchlets, petioles, underside of 1. and inflorescence softly white 

 flocculently woolly. L. alternate, peltate, orbicular, shortly 3-lobed, blade 8-14 in. 

 diam., pet. 2-6 in. long. Fl. in narrow racemes, 6-10 in. long. Capsules § in. diam., 

 densely clothed with masses of stellate hairs. 3. M. Roxburgnianus, Muell. Arg. Sub- 

 himalayan tract and outer hills from Sikkim eastwards. Assam. Khasi hills, Chitta- 

 gong. Forests east of Toungoo (Kurz). A small evergreen tree, branchlets, petioles and 

 underside of 1. stellately pubescent, 1. alternate, peltate, orbicular or ovate, acuminate, 

 not lobed, more or less toothed, upperside pubescent with simple hairs, blade 4-7 in. 

 diam., pet. 2^1 in. long. Racemes stout, 6-12 in. long, capsules deeply 3-lobed, J in. 

 diam., hairy and prickly. 



B. L. not or very narrowly peltate. 



4. M. nepalensis, Muell. Arg. Himalaya from Nepal eastwards, 5-8,000 ft., common 

 in second growth forests. Branchlets, petioles, underside of 1. and inflorescence shortly 

 rusty-tomentose, 1. sometimes opposite, quite entire, ovate or orbicular, blade 5-10, 

 pet. 3-8 in. long. Racemes stout, 6-12 in. long, capsules i in. diam., tomentose and 

 clothed with long soft tomentose bristles, crowded, forming dense cylindrical masses. 

 5. M. eochinchrnensis, Lour. — Syn. M. paniculatus, Muell. Arg. Pegu Yoma, eastern 

 slopes. Martaban and Tenasserim. Malay Penins. and Archip. China. A middle- 

 sized tree, branchlets, petioles, underside of 1. and inflorescence shortly white- or rusty- 

 tomentose, 1. alternate, rhomboid or orbicular, entire or acutely 3-lobed, blade 3-7, 

 pet. 2-6 in. long. Fl. in ample panicles, branches slender. Capsule 3-coccous, densely 

 clothed with soft white-tomentose bristles. 6. M. ricinoides, Muell. Arg. Upper 

 Tenasserim (Kurz). — China. Philippines. A shrub, branchlets, young 1. and inflor- 

 escence densely clothed with floccose fugacious tomentum of stellate hairs. L. broadly 

 ovate, acuminate, blade 5-8, pet. 2-5 in. Capsules crowded in short cylindric spikes, 

 J-f in. diam., densely clothed with long soft stellately tomentose bristles. 



(b) L. elliptic, oblong or obovate (excepting M. floribundus). 



a. Calyx spathaceous. 



7. M. acumrnatus, Muell. Arg. Andamans. Tenasserim. Malay Penins. and Archip. 

 A large shrub, young shoots minutely hairy, branchlets usually glabrous. L. mem- 

 branous, sometimes opposite, elongate-elliptic, base peltate or cordate, blade 4-8, pet. 

 1-3 in. long, racemes 6 3-6 in. long, fl. in crowded clusters, buds fj in. diam., 9 stout, 

 shorter. Capsule tridymous. 8. M. floribundus, Muell. Arg. Mergui. Malay Penins. 

 and Archip. Branchlets nearly glabrous, 1. membranous, glaucous beneath, orbicular 

 or broadly-ovate, base peltate, blade 4-5, pet. 2-3 in. Male spikes 2-3 in. long, fl. 

 crowded, in bud concealed by large imbricating bracts. Capsule tridymous f in. diam., 

 with scattered soft prickles. 9. M. Helferi, Muell. Arg. Pegu (Kurz). Tunzalin (D.B. 

 March 1880). Thoungyin (D.B. 1859). Malay Penins. A shrub, branchlets, petioles 

 and sometimes midrib minutely hairy, 1. sinuate-dentate, elliptic or elliptic-lanceolate, 

 acuminate, base rounded or nearly cordate, not peltate. Male racemes slender, 3-5 in. 

 long, fl. glabrous, green, on short pedicels, clustered, sepals 3, anther-cells at the ends 

 of a cylindrical connective. The Burma specimens have only i fl. 



B. Calyx 3-6-partite. L. usually opposite. 



(1) Western species. Minute shining orbicular scales on the underside of 1. 



10. M. Lawii, Muell. Arg. Western Ghats from the Konkan southwards, chiefly in 

 evergreen forest. A small shrub, branchlets, petioles and inflorescence pubescent, 1. 

 nearly glabrous, lanceolate, repand-toothed, blade 4-8, pet. J-i in. long. Racemes 



