226 MONOECIA. MONADELPHIA. 



T71. RICINUS* L. (Palma Christi, Castor- oil 

 Plant.) 



Masc. Calix 5-parted. Corolla none. Stami- 

 iia numerous. Fem. Calix 3-parted. Corolla 

 none. Styles 3, bifid. Caysules mostly echinate^ 

 3-ceIIed, 3-seeded. 



Herbaceous or shrubby; leaves alternate, stipulate, pal- 

 mate or more rarely undivided; summit of the petiole 

 glandular; flowers in a terminal spiked panicle> the lower 

 ones masculine, the upper feminine. 



Species. 1. R. communis. Merely naturalized in the 

 southern sl.ites. Now largely cultivated for oil, in Ken- 

 tucky and Tennessee. 



A genus of 10 species indigenous to India and Africa, 

 with the exception of a single species in Jamaica. 



772. STILLINGIA. L, 



Masc. Involucrumhcmis\yhcv\c2i]f many-flow- 

 ered, or wanting. Calix tubular, eroded. Sta- 

 mina 2 and 3, exserted. Fr-.M. Calix 1 -flower- 

 ed, inferior. Style trifid. Capsule 3-grained. 



Arborescent, shrubby and herbaceous; sap lactescent; 

 leaves alternate, stipulate, entire; flowers spiked, spikes 

 solitary, dicliolomal or terminal, upper part masculine, 

 lov/er feminine, racl)i3 in .S". sylvaiica producing interme- 

 diate ctipuhte glands. 



Species. 1. S. sylvatica. 2. sebifera. (Tallow Tree. ) 

 Jnlroduced from China. A species of Sapium? according 

 to Jussieu. — Spike terininal; involucrum raany-flowered; 

 stamens 3; fruiting calix 3-toot!ied, corolla none; stigmas 

 3, large and spreading; style scarcely any, 



3. li^ustrma. Obs. Dioi'cous? spikes partly lateral and 

 terminai; male ilovvers without involucrum; bracies 1- 

 fio'.vered, biglandular; calix trificl, rather flat; filaments 3, 

 aiithers 3, reniform. Female not seen. 



Tiie only species of the genus. 



773. EUPIiORPJA. L, (Spurge.) 

 Involucrum caliciform, 8 to tO-touthed, exte- 

 rior alternate dentures glanduloid or petaloid. 

 Stamina indefinite, 12 or more, rarely Icssj fila- 



