LXX. COMPOSIT®. 191 
toothed, bisexual. Involucre at first oblong, with short, leafy, 
villous accessory scales or bracts; the true scales long, sea- 
rious, shining, at length spreading. Receptacles nude, flat. 
Achenes ovate, very villous, sessile, crowned with a glabrous, 
thick beak. Pappus pilose, of roughish bristles, in several 
rows.— 7. Cap. iu. p. 272. 
P. xeranthemoides, DC., is a little-known, villous and canescent half- 
shrub, with sessile, lanceolate or oblong, callous-tipped, entire, crowded 
leaves ; and straw-coloured involucral scales. 
87. ELYTROPAPPUS, Cass. 
Heads 2-8-flowered, homogamous. Involueral scales ob-. 
long, imbricate, horny. Receptacles nude. Achenes beakless, 
sessile. Pappus of several, broad-based bristles, united in a 
ring at base, plumose in their upper half, with a very minute 
or rarely a cup-shaped, external rim.— FV. Cap. ii. p. 273. 
Much-branched shrubs, growing in dry ground. Leaves minute or 
heath-like, mostly spirally twisted, more or less glandular and strongly 
scented. Heads small, subsessile in the axils of the upper leaves, solitary 
or few together, as if spiked.—6 species, chiefly Western ; one of them, the 
* Rhinoster Bosch,” is the pest of the farmer, and finds its way every- 
where. - 
88, PTEROTHRIX, DC. 
Heads 3-10-flowered, homogamous. Other characters as in 
Amphiglossa—Fl. Cap. i. p. 2'75. 
Small, spinous or unarmed shrubs, similar in habit to the next genus.— 
3 species, dispersed. 
89. AMPHIGLOSSA, DC. 
__ Heads 6-20-flowered, heterogamous, radiate; ray-flowers 
ligulate, sometimes very minute and shorter than the involu- 
ere; disk-flowers bisexual, 5-toothed. Involucre eylindri- 
cal, imbricate, scarious. Receptacles nude. Achene glabrous. 
Pappus of many, very slender, deciduous, separate bristles, 
closely and amply feathered through their whole length, with 
or without a minute, external annulus.— 7. Cap. iii. p. 276. 
Small, much-branched shrubs. Leaves small, linear or subulate, glabrous 
and convex externally, woolly within, with inflexed edges. Heads sessile, 
terminal.—8 species, dispersed. 
90. BRYOMORPHE, Harv. 
Heads several-flowered, radiate ; ray-flowers few, ligulate, 
female ; disk-flowers bisexual, 5-toothed. Involucre imbricate 
in few rows, the scales linear, separate, caducous. Receptacles 
naked. Anthers tailed. Style-arms truncate. Achene gla- 
brous, beakless, sessile. Pappus of several, slender, scabrous 
