21B NATURAL HISTORY OF PLANTS. 



Conocephalus ; perianth tubular, cylindrical, ovoid or urceolate, some- 

 times obovoid, membranous or rather thick fleshy, apex either entire 

 and sometimes perforated with a very small aperture, or more rarely 

 1-3-dentate. Germen free ; ovule either quite basilar or orthotropous, 

 or somewhat laterally inserted ; micropyle always apical. - Fruit 

 drupaceous, enclosed by persistent and enlarged calyx, closely 

 packed or adnate at base. Seed erect or ascending ; hilum basilar 

 or somewhat lateral ; cotyledons of straight exalbuminous embryo 

 plano-convex subequal; radicle superior short. — ^Trees or shrubs, 

 sometimes climbing, lactescent; leaves alternate simple (of PoMroM»2a), 

 ovate or cordate or obovate, glabrous or pubescent, petiolate ; 

 stipules axillary connate in one obliquely amplexicaul, caducous; 

 inflorescences axillary capitate ; capitules glomeruliferous ; peduncles 

 oftener 2-nate, simple or 2-chotomous ; branches capituliferous, 

 {Trop. South America.^) 



60. Cecropia Lcefl.® — Flowers dioecious (nearly of Coussapoa 

 or ConocephQ,lm) ; males 2-androus ; calyx tubular or narrow 

 conical, at apex subentire or shortly 2-dentate, sometimes more 

 deeply 2 -fid. Stamens short ; filaments erect ; anthers introrse, 

 2-rimose. Female calyx tubular entire or subentire, subincrassate 

 at apex and there perforated, Germen free, enclosed by calyx; 

 ovule inserted under apex of cell descending, micropyle extrorsely 

 superior ; style terminal or slightly lateral short, apex stigmatose 

 simple variously capitate-peiiicillate. Fruit dry, enclosed by calyx, 

 hence subdrupaceous ; seeds, etc., of Coussapoa. — Trees or shrubs; 

 juice milky ; branches terete, fistulous between the nodes ; medulla 

 hollow, here and there septate ; leaves alternate, more or less peltate, 

 palmatilobed or digitate ; petiole often callose at base ; stipules 

 connate in one wide snathelike amplexicaul, deciduous; scars 

 annular; flowers axUlary crowded; peduncles 1, 2rnate, at apex 

 subumbellately 2-co -rimose ; umbels (spurious) single, the younger 

 enclosed by spathiform caducous laract; branches (receptacles) 

 amentiform subcylindrical glomeruliferous; males generally more 

 slender than the females. {Both trop. Americas?') 



' Spec, atout 20. Pojpp. et Endl. Nov. Gen. t. 800.— Spaoh, Suit, a Buffon, xi. 108.— Endl. 



et Spec.i ii. 33, t. 147.— El. Lirmaa, xx. 527.— Gen. n. 1865.— Tbec. Ann. Sc. Nat. s6r. 3, viii. 



MiQ. Mart. Fl. Bras. Urtie. 131, t. 42-46.— 78, t. 1, fig. 9-22.— Bur. Prodr. xvii. 283.— 



Walp. Ann. i. 656. F. Darwin, on the glandular todies of Cecropia 



2 It. 272.— L. Syst. n. 1099.— J. Gen. 402. pettata [J. Lin. Soe. xt. 398). 



— Lamk. Diet. ii. 143 ; Suppl. ii. 374 ; III. ' Spec. 30-40. Sloans, Hist. i. 138, t. 88 



