634 NATURAL BISTORT OF PLANTS. 



7 ? Acicarpha J.* — Flowers (of Calycera or Boopis) polygamous, 

 2-morphous, capituliform-glomerulate ; exterior glomerules of inflo- 

 rescence formed of fertile flowers; achenes crowned with concrete 

 foveoles of raised receptacle and persistent accrescent hard spinescent 

 lobes of calyx ; upper glomerules composed of sterile flowers ; 

 germens not changed after floration free. — Herbs generally annual, 

 ramose or procumbent, foliate ; leaves alternate, petiolate or sessile 

 amplexicaul, obovate, spathulate or subpinnatifid ; inflorescences 

 shortly pedunculate or sterile. (Extratrop. west. S. America, trop. 

 east, marit. Brazil.^) 



' Ann. Mus. i^, 347, t. 58, 1. — Cass. Diet. Sc. Soc. xii. 131. — Sommea Bout, Ann, Gen. So. 



Nat, i. Suppl. 32, — Less. Lmn<ea, yi. 527. — Fhya. vi. 92, t. 87. — Aeanthosperma Velloz. 



L..0. Rich. Mem. Mus. vi. 78, t. 11.— DC. M. Fltm, Atl. viii. t. 152 (not H. B. K.).— 



Frodr, v. 3 (part). — Endl. Gen. n. 3036. — H. JSehinolema Jacq. p. (ex Endl.). 



Bn. Payer Fam. Nat. 245.— B. H. Gen. ii. 162, « Spec. 3. Poik. Diet. Suppl. i. 110.— Miers, 



n. 3. — Cryptocarpha Cass. Bull, Soc. Fhilom. Ann. and Mag. Nat, Mist. (1869); Contrib.a. 



(1817) ; Diet. Sc. Nat. xii. 86.— Ttjbp. Diet. 37, t. 51, 62 (part). 

 Se, Nat. Atlas, t. 194.— K. Bk. Trans. Linn. 



