€ENTURIA XII. Ill 



genera! The sp. are yet in utter confusion by their 

 simphcity and will never be properly known till 

 refered to my Genera ; the stamens and stigmas 

 must also be noticed, and the color of the flow- 

 ers is very essential in this series of plants. 



1167. EUPHORBIDES Raf. is a family of 

 the order EPlMElSIA or the Tricoca (Eu- 

 phorbia of some) based chiefly on the G. Eu- 

 phorbia of L. or Tithymalus Ad. which was a 

 jumble of nearly 30 good Genera ! easily known 

 by having a perianthe with many male flowers 

 around a female and commonly without calix, 

 which L. had mistaken for dodecandria ! The 

 other families of this extensive order are easily 

 distinguished — Cyrtosides by lack of perian- 

 the, fruit dicocus, type Mercurialis — Tragides 

 by flow ers separate, type Tragia — Phalarsides 

 by stamens monadelphous and determinate,type 

 Sapium — Ricinides by stamens united and 

 many, type Ricinus &c. I mean here chiefly 

 to revise in part the G. Euphorbia, left uncor- 

 rected by all except Necker who made 5 G. out 

 of it, and Persoon who divided his 156 sp. in two 

 subg. Tithymalus and Esula. A few akin G. 

 have lately been admitted, but the 200 sp. now 

 known aflbrd a crowd of good characters, while 

 the old greek names of these plants aflbrd many 

 good names for them. 



1168. Euphorbia Necker, periantho duplex, 

 ambi globosis truncatis integris, fl. masc. paucis 

 sepe 5, monandris, gynophoro pistilo ferens, sty- 

 lis 3, stig. 6 caps, tricoca, trisperma. Caulib, 

 perennis carnosis, aphylis, spinosis, fl, spar^ 

 sis — Type E, antiquorum, mamillaris, offici- 

 varum &c and akin sp. but the flowers of all 

 must be verified. The smooth sp. will form the 



