562 cxxxvi. URTICACE^E. (J. D. Hooker.) [Pellioma. 



Stem woody below. Leaves 4-7 in , and stipules as in HeJferiana, but petiole 2 -3 in . 

 Achenes compressed, tubercled. The authority for this being a Javtin plant consists i;i 

 specimens in Herb. Hook, ticketed " Java, Lobb ;" but as Lobb also collected in 

 Singapore, and corresponding specimens of Lobb's in Herb. Beutham are ticketed from 

 Singapore, it is possible that the Javan habitat is an error. 



11. P. acaulis, Hook. f. ; stem very short and petioles and nerves 

 beneath villous, leaves crowded at the top of the stem falcately elliptic- 

 lanceolate obtusely acuminate, base acute, fern, cymes capitate very shortly 

 peduncled. 



PENANG ; on damp rocks, King's Collector. 



Stems 1-2 in., rooting up to the leaf-bases. Leaves 2-4 in., cystoliths obscure ; 

 petiole in. Fern, cymes $ in. diam. ; flowers sessile; sepals narrowly linear, ciliate ; 

 achenes compressed, tubercled. 



SPECIES UNKNOWN TO ME. 



12. P. procridifolia, Kurz in Trimen Journ. Sot, 1873, 330, and in 

 Journ. As. Soc. Seng. xlv. ii. 149 ; monoecious, scandent, fleshy, glabrous, 

 leaves 4-7 in. obversely or linear-oblong shortly or abruptly acuminate 

 entire, base unequal acute, nerves 5-6 pairs, cystoliths slender, flowers white 

 males in small subaxillary glabrous cymes, peduncle -l|- in. slender, fern, 

 forming dense axillary hemispheric clusters. 



NICOBAE ISLANDS ; in Katchall, Kurz. 



Kurz observes that the leaves are very like those of P. lamgaia, and (in Beng. As. 

 Soc. Journ.) that the species is very near P. frutescens, which is a Javan hill species 

 with serrate leaves. I find no reference elsewhere to P. frutescens and laevigata, both 

 which names occur under Procris as species of Blume's. 



32. EXiATOSTElKA, Forsl. 



Herbs or undershrubs. Leaves alternate or with sometimes a minute 

 leaf subopposite to the normal leaf, distichous, sessile or subsessile, usually 

 very oblique and unequal-sided, triple-nerved at the base or above it; 

 stipules intrapetiola.r or lateral. Flowers very minute, crowded on sessile 

 or peduncled unisexual usually involucra'e receptacles; in vol. bracts 

 rounded oblong or ovate, outer sometimes with a dorsal spur or horn, bases 

 nearly free or mor& or less confluent in a fleshy circular or lobed disk 

 margined with the tips of the bracts, margin rarely quite entire ; bracteoles 

 densely crowded, of male heads usually oblong, of fern, spathulate ; the 

 flowers are often collected in clusters, each surrounded by partial bracts, 

 giving the head a lobed appearance. MALE FL. Sepals 4-5, 2 or more usually 

 tubercled or spurred at the back. Stamens 4-5, inflexed in bud. Pistillode 

 minute. FEM. FL. Seoals 3-5, very minute, much shorter than the ovary, 

 persistent. Staminodes minute or 0. Stigma penicillate ; ovule erect. 

 Achene minute, ellipsoid or fusiform, usually ribbed, subtended by the most 

 minute perianth. Seed usually exalbuminons, testa membranous j- cotyledons 

 ovate or semiterete. Species about 50, natives of the tropics of the Old 

 World, except Australia. 



As in the case of Pilea (p. 551), the type specimens of the Indian species of this 

 genus were so hastily named by Weddell in the Hookerian Herbarium, that I have 

 had great difficulty in identifying many of them with his descriptions, and have failed 

 in one or two instances. The presence of small leaflets opposite the loaves not being 

 a constant character iu some of the spec-ies where these do occur, and a very obscure 

 one in others, 1 have not been able to use it as a sectional character. Probably much 



