DIPSACACE^. 533 



short, equal or unequal. Corolla regular ; tube rather long, sometimes 

 rather thicker at base; lobes of limb oftener 5, 3-nerved, valvate. 

 Stamens as many, alternating with lobes of corolla ; filaments inseiied 

 at top of tube, 1-adelphous at base, free above ; anthers introrse, 

 2-rimose, marginally coherent in a tube traversed by the style. Glan- 

 dules same in number alternating with stamens and sessile within tube. 

 Germen inferior, 1 -celled; style slender, at slender exserted stigmatose 

 apex not or scarcely dilated or truncate entire. Ovule 1, inserted 

 near apex of cell, descending ; micropyle introrsely superior. Fruit 

 dry, indehiscent, free, crowned with unchanged or scarcely changed 

 calyx ; pericarp longitudinally 4-6-angular, rather hard or suberose ; 

 angles continuous with persistent, rather obtuse, acute or spinescent 

 lobes of calyx. Seed descending ; albumen fleshy ; embryo axile 

 shorter than albumen ; radicle superior. — Glabrous annual or oftener 

 perennial herbs ; stem ramose, sometimes foliate or oftener scapeHke ; 

 lower leaves rosulate ; all alternate, often rather fleshy, entire, dentate 

 or pinnatifid; flowers in spurious capitules at top of simple or branched 

 scape ; exterior bracts pointless not accrescent, approximate or connate 

 below in an involucre; interior paleaceous; bracts in axils each 

 glomeruliferous ; all flowers of the glomerule fertile, or more rarely 

 the exterior male sterile. {South-west, extratrop. And. and suhtrop. 

 east, America.) — See p. 524. 



6. Calycera Cav.' — Flowers (of Boopis) polygamous, 2-form in 

 each glomerule; a few central hermaphrodite fertile; the outer 

 (younger) often male sterile. Other characters of Boopis. — Annual 

 or perennial herbs, glabrous or woolly, erect or procumbent ; leaves 

 alternate, either remote on stem, or rosulate at base, coarsely dentate 

 or pinnatifid; inflorescence capituliform-cymose,on simple or branched 

 peduncle ; bracts of involucres free or connate at base ; fruit dry, 

 2-form ; germens of larger flowers hardened above and crowned with 

 2-5 hardened spinescent elongate accrescent lobes of calyx ; calyx 

 of smaller flowers scarcely or not at all changed. (South Peru, Chili.^) 



1 Icon. iv. (1797) 34, t. 358 {Calieera).— Cass. Kingd. 701 (ex B. K^.—Gt/nDioeaulns Phil. 



Diet. Sc. Nat. vi. Suppl. 36; Journ. Phys. (1818) Zu»/«<r, xxviii. 705 (ex B. H. Gen. loe. cit.). 



113 ; Opiisc. Phyt. ii. 353.— L.-C. Eich. Mem. ^ Spec. 8, 9. E. et Pav. Fl. Per. i. 49, t. 76 



If ?<5. vi. 77, 1. 10.— DC. Protfr. V. 2.— Endl. G^«. {Scabiosa).—B.^^iY, C. Gay FL Chil. iii. 251. 



n. 3035.— H. Bn. Paijer Fam. Nat. 245.— B. H. —Phil. Zinncea, xxviii. 706.— Wedd. Chlor. 



Gen. ii. 162, n. 2.—Leueocera Tukcz. Bull. Mose. Andin. ii. 1, t. 43.— Miers, loc. cit. 34, t. 50. 



(1848) i. b^2.—Ano7nocarpus Miers, Ccntrib. ii. — Walp. Rep. vi. 87 ; Ann. i. 988 ; ii. 807 



27, t. 48, i9.—Discojjhytum Mieks, Liiidl. Vcg. (Leueocera). 



