Calostejihane.'] Lxxiii. composite; (oliver and hiern). 363 



alternate petiolate nearly entire. Capitula loosely cymose-panicled 

 pedunculate. 



A monotypic genus. 



1. C. dlvaricata, Beiifh. in Hook. Ic. PL 1111. Divancately 

 branched herb, 2 ft. or more high ; branches slightly striate, alate 

 above, puberulous or above scaberulous. Leaves ovate or lanceojate, 

 subobtuse', cuneate at the base into alate petiole, glandular-punctate, 

 membranous, denticulate or subentire, ^2 in. long by ^-^ in. wide ; 

 midrib aspemlous with short hooked bristles; petioles shorter than the 

 leaves, dilated below and decurrent, asperulous at the alate margins. 

 Capitula depressed-globose, ^ in. wide by ^ in. high, on distinct unequal 

 terminal and subterminal peduncles. Scales of the involucre linear- 

 subulate, uniseriate, not wholly contiguous, acute, with hooked bristles 

 outside. Receptacle ^ in. diara. Achenes costate somewhat falcate ; 

 ribs setulose. 



Mozamb. Bistr. Kaimba Island, opposite Tette, Dr. Kirk! 



47. PULICABIA, Gaert. ; Benth. et Hook. f. Gen. PI. ii. p. 335. 



Capitula heterogamous, radiate or discoid, outer florets $. Invo- 

 lucre hemispherical ; bracts narrow acute pauciseriate, outer more or 

 less herbaceous usually shorter. Receptacle foveolate or punctate. 

 Ray-florets ligulate or limb of corolla minute. Anther- base sagittate 

 finely tailed. Achenes subterete or ribbed. Pappus more or less dis- 

 tinctly duplex, outer usually minute cupuliform dentate, inner setace- 

 ous. — Herbs usually hairy or puberulous with alternate sessile often 

 amplexicaul entire or toothed leaves and solitary or cymosely panicled 

 yellow capitula. 



A considerable Old World genus of the Tropics and Northern temperate zone. 

 Pappus biseriate ; outer pappus cup-shaped, toothed ; 

 inner pappus composed of scabrid setae. 



Leaves petiolate 1. P. petiolaris. 



Leaves sessile or the lowermost ones petiolate. 

 Setfe of the inner pappus 7-8. 



Outer involucral bracts herbaceous. Setae of the 



pappus barbellate towards the tip .... 2. P. Ruppellii. 

 Outer involucral bracts dark brown at the apex. 

 Setae of the pappus plumose-barbellate at the 



apex 3. P. Kicrtzia7ia. 



Setae of theinner pappus 10-15. Receptacle punctate 

 or areolate. 

 Leaves narrowed, not amplexicaul at the base . . 4. P. Grantii. 

 Leaves auriculate-amplexicaul. 



Leaves mucronate, denticulate, flat 5. P. vulgaris. 



Leaves obtuse, not mucronate, dentate, often 



undulated 6. P. undulata. 



Setae of the inner pappus 20. Receptacle alveolate . 7- P. Hildebravdtii. 

 Pappus biseriate ; outer pappus of short setae ; inner of 



longer setae 8. P. Renschiaiw. 



Pappus subuniseriate, of s^tse with a few short ones . . 9. P. crispa. 



