Dioseorea.} oliv. DiosooREACEai. (J. D. Hooker.) 297 



D. INTEEMEDIA, T&waites Enum. 326 j glabrous, unarmed, stem terete, leaves 3 

 by _|-li in., opposite and alternate elliptic or oblong acuminate mucronate 3-ner7ed, 

 petiole ^l in., fem. spikes 1 in. or rather more solitary simple, male shorter than 

 the leaves fascicled or in long panicles flowers hexandrous, — Hotter parts of Ceylon. 

 — The specimens I have seen are too imperfect for farther description. It is very 

 near D. spioata, but has shorter spikes. 



D. NBPALENsis, Sweet Hort. Brit. JEd. ii. 522. No description. 



D. PELTATA, Jufs. in Pers. Syn. ii. 621 ; Kunth Enum. vi. 413 j from Ceylon, is 

 probably a Coccuhiz. 



D. PITEPUBEA, Eoxb. Fl. Ind. iii. 799 ; tubers oblong reddish throughout, stems 

 6-, or more-winged prickly, leaves opposite and alternate cordate 5-7-nerved, 

 petiole long winged stem-clasping. Male and fem. spikes as in D. rubella. — 

 Cultivated in Bengal. 



D. RUBELLA, Roxb. I. 0. 798 ! tubers oblong red-skinned, stem 6-winged, leaves 

 opposite sagittate-cordate 3-7-nerved, male spikes axillary simple and compound, 

 if simple shorter than the leaves, fem. spikes axillary generally simple longer than 

 the leaves, flowers very fragrant, staminodes large almost like the male stamens. — 

 Cultivated about Calcutta. 



D. SPICATA, Both; var. $. Thwaites Enum. 326 (C. P. 2872) ; a very slender 

 plant with ovate caudate-acuminate leaves, and a short panicle of large broad orbicular 

 cuspidate thin walled capsules, is something I think entirely different from X>. spioata. 

 Capsules 1-li in. diam., valves semicircular. Seed orbicular, } in. diara., broadly 

 winged all round. 



2. TRXCKOFUS, Gairtn. 



A small erect rigid, perennial herb. 8tem short. Leaf terminal, 

 petioled, linear-lanceolate, ovate or triangular, 3-7-costate. Flowers small, 

 fascicled at the base of the leaf, panicles flliform, bisexual. Perianth 

 campanulate, subequally 6-fld. Stamens 6 on the bases of the perianth 

 lobes ; anthers subsessile, short, broad, connective produced. Ova/ry 3- 

 celled; style very short ; stigmas 3, short, reflexed, 2-fld ; ovules 2, super- 

 posed in each cell, anatropous. Fruit ovoid, triquetrous, indehisoent. 

 Seeds oblong, rugose, grooved dorsally, testa thin embryo minute in a 

 cartilaginous albumen. 



1. T. zeylanicus, Gtertn. fruct. 1, 44, 1. 14; Beccari in Nuov. Griorn. 

 Bot. Ital. ii. 13 ; Beddome Ic. PI. Ind. Or. t. 290. Trichopodium oordatum 

 intermedium and augustifolium, lAndl. Bot. Reg. sub t. 1543. T. zeylani- 

 cum, Thwaites Ermm. 291, 443. Podianthus arifolius, 8chnHzl. in Bot. 

 Zeit. 1843, 739. 



Teatancobb, Beddome. Cetlon common. 



Stem 1-3 in. Leaves 2-8 in. long, petiole 1-8 in. Pedicels 1-3 in. long. 

 Flowers minute, dark brown ; perianth lobes lanceolate, acute. Wrmt ^ in. long, 

 pedicel thickened at the top. 



Okber cly. roxbvrgkxaces:. 



Bootstoch tuberous or creeping ; stem erect or climbing. Leaves 

 alternate or opposite, petioled, 3 or more-costate, cross nervules parallel. 

 Flowers in axillary peduncles, regular, bisexual. Perianth, superior or 

 half-superior, 2-seriately 4-cleft. Stamens 4 at the base of the perianth- 

 lobes or snbhypogynous ; anthers dorsifixed. Ovary 1-celled; stigma sub- 

 sessile, or stigmas 3 ; ovules 2 or more, erect from the base or pendulous 

 from the top of the cell, anatropous. Capsule 2-Talved (fruit unknown in 



