226 MONOECIA. MONADELPHIA. 



771. RICINUS. L, (Palma Christi, Castor oil 

 Plant.) 



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

 na numerous. Fem. Calix 3 -parted. Corolla 

 none. Styles 3, bifid. Capsules mostly echinate^ 

 o-celied, 3-see(Ied. 



Herbaceous or shrubby; leaves alternate, stipulate, pal- 

 mate or more rarely undivided; summit of the petiole 

 glandular; flowers in a terminal spiked panicle, the lov.'er 

 ones masculine, the upper ^minine. 



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

 southern states. 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. 



77.2, STILUNGIA. i. 



Masc. Jnuo/«cni?n hemispherical, many-flow- 

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

 mina 2 and 3, exserted. Fem. Calix 1 -flower- 

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



Arborescent, shrubby and herbaceous; sap lactescent; 

 leaves alternate, stipulate, entire; flowers spiked, spikes 

 solitary, dichotomal or terminal, upper part masculine, 

 lower feminine, rachis in S- sylvatica producing interme- 

 diate capulate glands. 



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

 Introduced from China. A species of Sapium? according 

 to Jussieu. — Spike terminal; involucrum roany-fiowered; 

 stamens 3; fruiting calix 3-toothed, corolla none; stigma3 

 3, large and spreading; style scarcely any. 



3. lig-ustrina. Obs.' Dioicous? spikes p'artly lateral and 

 terminal; n.ale flowers without involucrum; bractes 1- 

 fiowered, biglandular; calix trifid, rather flat; filaments 3, 

 anthers 3, renitbrm. Female not sten. 



The only species of the genus. 



775. EUPHORBIA. L. (Spurge.) 



Involucrum caliciform, 8 to 10-toothed, exte- 

 rior alternate dentures glanduloid or pctaloid. 

 fir^amiwrtinuefinite, 12 or more, rarely Icssj fila- 



