— i65 — 



Algufs. 

 Algue verte d'eau douce. — N° 272. 



3o. F. GAGNEPAIN. — Tiliacées nouvelles ou peu connues 

 de l'Asie orientale. 



Sloanea Hanceana Hemsley, in Hook. le. P/., sub tab. 2628. 

 — Echinocarpus sinensis Hemsley, in Ann. Bot., IX (i8q5), 

 p. r 47 . 



Arbor elata, ramis glabris vel partibus novellis tenuiter pilosis. Folia ad 

 apicem ramorum conferta, petiolata, lineari-lanceolata vel oblanceolata, 

 ad basin attenuata et abrupte rotundata, subemarginata, ad apicem grada 



F. 7. — Sloanea Hanceana Hemsley. 



tim acuminata, acuta, margine acute serrato-mucronato, supra viridia 

 subtus pallescentki, utrinque glaberrima; nervi latérales 8 utrinque, raox 

 ramosi, ad marginem invicem confiuentes, basi in axillis pilosi, venulis 

 utrinque conspicuis, retem densum efformantibus ; petiolus teres, glaber- 

 rimus, gracilis, basi leviter dilatatus, apice eglandulosus. Inflorescentia 

 subterminalis, corymbosa, griseo et tenuiter pilosula, pedicellis gracilibus, 

 apice incrassatis, ebracteatis, unifloris, floribus disciformibus, latioribus 

 quam longioribus, luteis. — Sepala 4, rarius 5, ovalia, obtusa, basi vix 

 coalita, utrinque et brevissime albido-pilosula. Petala 4-5, late ovata, 

 utrinque pilosula, apice haud lacerata sed erosa vel 4-6 dentata, sepala 



