Mallohis.] cxxxv. EUPIIORBIACE.E. (J. D. Hooker.) 431 



t Female calyx spathaceous. 



9. 1H. acuminatus, Muell. Arg. in LinrxBa xxxiv. 187, and in DC. 

 Prodr. xv. ii. 966 ; brancblets hoary or glabrous, leaves opposite and alter- 

 nate long petioled peltate oblong caudate-acuminate entire or repand- 

 toothed obscurely glandular beneath, base peltate 5-7- nerved rounded or 

 cordate, male racemes slender, buds ovoid, fern, calyx spathaceous pubescent, 

 ovary strigose and echinate, style very long stout, capsule tridymous glan- 

 dular hispid and clothed with short pubescent spines. ? M. acuminatus, 

 Kurz For. Fl. ii. 383. 



TENASSERIM; at Mergui, Griffith (Kew Distrib. 4758). ANDAMAN ISLANDS, 

 Kurz. PERAK, King's Collector. MALACCA, Maingay (Kew Distrib. 1446). 

 DISTRIB. Sumatra. 



An evergreen tree, variable in pubescence; branohlets terete. Leaves 3-8 in. 

 rather thin, almost membranous, midrib and 8-10 pair of nerves beneath hairy, cross- 

 nerv.ules fuint or strong; petiole 1-3 in. Male raceme* (in Andaman specimens) 

 2-3 in. ; flowers minute, glabrous, in crowded clusters ; buds ovoid, acute, -^ in, 

 long; stamens about 30, filaments free or connate, anther-culls separated by a 

 truncate thick warted connective. Fern, racemes larger than the males, stouter ; 

 bracts lanceolate, caducous; calyx obliquely urceolate, entire or 2-3-cleft, deciduous; 

 style very stout, puberulous or glabrate, stigmas rather short. Capsule (in Perak 

 specimens) f in. cliam. ; cocci globose. The Perak specimens have more hoary 

 branchlets, petioles and fern, racemes than the Malaccan. I refer this to M. acumi- 

 natus, of which Mueller says stamens 60, rather than to the Sumatran M. longi- 

 folius, in which he states them to be (as they are in this) about 27-30; he further 

 adds under longifolius that it is extremely like acuminatus, but that besides the 

 number of stamens it differs in the rather longer and slender spines of the capsule, 

 and in the shorter style. Kurz says of his acuminatus that it is frequent in the 

 Andamans, and that the leaves are either peltate or cordate, but I have seen no. 

 specimens from thence. I have not cited the synonyms of M. acuminatus given by 

 Mueller, feeling doubtful about the species. 



10. I IWC. Helferi, Muell. Arg. in Linncea xxxiv. 190, and in DC. 

 Prodr. xv. ii. 968 ; branchlets young petioles and racemes sparsely stellate - 

 pubescent, leaves nearly glabrous alternate long-petioled ovate- or linear- 

 oblong caudate-acuminate sinuate-toothed obscurely glandular beneath base 

 rounded or subcordate not peltate 3-5-plinerved, male racemes slender, buds 

 minute obovoid nearly glabrous, fern, racemes elongate, calyx spathaceous, 

 ovary clothed with short stout soft spines, style twice as long as the 

 stigmas. ? Kurz For. Fl. ii. 384. 



TENASSERIM; Koloukhin Island in the Saluen River, Heifer (in Herb. DC.); 

 Mergui, Heifer (Kew Distrib. 4731). MALACCA, Maingay (Kew Distrib. 1446). 



Branches slender, but woody, tips and racemes sparsely glandular. Leaves 3-6 in., 

 rather membranous, greenish when dry ; nerves very slender, 6-8 pair above the 

 short basal, often pubescent beneath ; basal glands ; petiole 1-1 in. Male racemes 

 filiform; bracts minute, 2-4-fld. ; flowers T \, in. diam. ; sepals 3-5, lanceolate; 

 stamens about 20: anther-cells separated by the truncate tubercled connective, 

 which sometimes is produced above them. Fern, racemes 68 in., many-fid. ; calyx 

 spathaceous ; ovary pubescent and clothed with soft turgid nearly glabrous spines ; 

 style stout, twice as long as the short recurved papillose stigmas. The male flowers 

 are described from Mergui and the fern, from Malaccan specimens. It is possible 

 that they may not be conspecific. Kurz says of Helferi that it is very common all 

 over Burma from Pegu to Tenasserim and the Andamans, but I have seen only 

 Heifer's male specimens, and as he described the style as short, I doubtfully quote 

 him. It differs from acuminatus chiefly in the not peltate leaves and ovary not being 

 densely hispid. 



VOL. v. r f 



