LXXUL. COMPOSILZ (OLIVER AND HIERN), 261 
ceptacle naked or rarely paleaceons, smooth or alveolate or fimbrillate. 
Corollas of the disk-florets either tubular and pentamerous or bilabiate ; 
corollas of the ray-florets ligulate with or without a shorter bilobed 
inner lip. Anther-base with long tails. Style-branches obtuse 
rounded or truncate at the apex, not appendaged. Achenes crowned 
with a setaceous or paleaceous pappus.—Herbs or rarely shrubs with 
alternate or radical leaves and usually purple or scarlet flowers. 
Caulescent branched herbs or shrubs. 
Involucral bracts obtuse or lanceolate or subulate, not 
pungent. 
Florets all hermaphrodite tubular. Involucral bracts 
veryobtuse. . . 2... 1 oe ee ee 
Heads homogamous, radiate, with all the florets her- 
maphrodite. Involucral bracts ovate or lan- 
101. Pie1oraxis, 
ceolate . . . 2. . . ee ee) «102, ERYTHROCEPHALUM. 
Heads heterogamous, radiate. Involucral bracts subu- 
late-prolonged. . . . . . » ~ 103. PHYLLACTINIA. 
Involucral bracts rigid, straight, pungent. 
Pappus pluriseriate Loe ee . 104. Dicoma. 
Pappus uniseriate . . . . . . . . + «105. Hocusrerreria. 
Acaulescent, scapigerous herbs . . . . . . « ~~ 106. GERBERA. 
Trine XIII. Cichoriaceze. Capitula homogamous; florets all 
hermaphrodite, ligulate, fertile or occasionally a few barren. Corolla- 
tube slender; ligule 5-toothed. Anthers appendaged at the apex, 
Sagittate at the base, auricles acute or setaceous-acuminate, not tailed. 
Style-branches slender, rather obtuse or rather acute.—Herbs with 
usually milky sap, alternate or radical leaves, and yellow or occasionally 
purple or blue flowers. 
Pappus paleaceous, or with not more than 12 sete, or 
coroniform, or altogether wanting. 
Corona of the pappus short ; sete 2-3 or 0. Flowers 
yellow. Receptacle paleaceous . . . . . « 107. Scotymus. 
Palee of the pappus short or wanting. Flowers blue. 
Receptacle naked or sparingly fimbrillate . . . 108. CicHoriuM. 
Sete of the pappus 12, in one row. Flowers yellow. 
Receptacle alveolate . . . . . . . . + ~ 109. Touris. 
Pappus setaceous, copious. 
Sete of the pappus plumose . . . . . . . 
Sete of the pappus simple, smooth or barbellate, not 
plumose. 
Achenes more or less beaked. 
Achenes subterete or obscurely angular, not com- 
pressed . . . ... 1 ss «ADD. Certs. 
Achenes, at least the outer ones, more or less 
compressed. 
Achenes all similar. . . . . . . . ~~ ‘112, Lactuca. 
Outer achenes compressed, the inner ones co- 
lumnar . . . . we ee ee + 11S, HETERACHANA, 
Achenes not beaked. 
Outer involucral bracts, with conspicuous scarious 
margins. Achenes oblong ... +: : 
Outer involucral bracts herbaceous or achenes 
narrow. 
Achenes 10— -costate or -striate. 
110. Picris. 
114, ReicHARDIA. 
