XLI. EUPHORBIACE^. 



1. EUPEOEBTA (Sptjege) SEEIES. 



Yarious descriptions have been given of the flower of the 

 Euphorbias I (fig. 143-152). According to the earliest it is 

 regular, hermaphrodite and pentamerous. The xeceptacle, varied in 



Euphorbia Lathyris, 



Fig. 143. Floriferous and fructiferous branch (J). 



Fig. 145. Diagram. 



form, would, in this case, bear a perianth surrounding an iadefinite 

 number of stamens, after which its organic summit would be 

 elongated into a column supporting the gyneeceum. The gamose- 

 palous calyx, in the form of a bell or a more or less deep sac, is cut 



1 Ihiphorbia L. Gen. 243.— J. Oen. 385.— 

 Lamk. Diet. ii. 412 ; Suppl. ii. 607; III. t. 411. 

 — TuRP. in J)ict. Sc. Nat. Atl. t. 275. — A. Juss. 

 Euphorb. (J)e Euphorbiacsarum Oen. Med. Ear. 

 Virt. Tentamen, Paris [1824], in-4) .— Spach, 

 Suit, a Buffon, ii. 630.— Endl. Gen. n. 6766. — 

 H.'Bk. Euphorb. {Etude generale du growpe des 

 EupUrbU-eeiB, Paris [1868], in-8), 4, 46, 280, 

 t. 1, 2. — Boiss. in BG. Prodr. xv. sect. ii. 7 ; 

 Icon. Euphorb. (1862), in-4.— Bakek, Fl. Maurit. 

 302. — Tithymalm T. Inst. 85, t. 18. — Adans. 

 14. des PI. a. Z6S. —GtXS.TS. Fruct. ii. 115, t. 



VOL. v. 



107. — Ewphorbiiim IsN. in MSm. Ac. Sc. Par. 

 (1720), 324 (incl. : Adenopetalum Kl. et Gucke. 

 Alectonctonum Sohltl. Anisophyllum Haw. 

 Aiithaeantha Lem. Arthrothamnus Kl. et Grckb, 

 Athymalus'H.ii.yt'. DactylanthesHAW. Dichrophyl- 

 lum Kl. et Grcke. Esula Haw. Eumecanthus Kl. 

 et GiiCKT?. Euphorbiastrvm Kl. et Grcke. Galar- 

 rhaius Haw. Keraselma Haw. Leptopus Kl. et. 

 Grcke. (nee Done.), Medusea Haw. Petaloma 

 KAriN. Poinsettia Grah. Sterigmanthe Kl. et 

 Gecke. Synadenium Boiss. Tithymalopsis Kl. 

 Treisia Haw. Tricherostigma Kl. et Grcke.) i 



