lirechthites.] L^fV. COMPOSI^^. 873 



E. arguta to nearly twice as long, the terminal contraction amounting to a distinct 

 beak or scarcely perceptible. — Steetz in PI. Preiss. i. 483 ; Hook. f. Fl. Tasm. 

 i. 219 ; Senecio quadridcntatus, Labill. PI. Nov. Holl. ii. 48, t. 194 ; <S'. tenuijiorus, 

 Sieb. PI. Exs. ; E. tenuiflom, DC. Prod. vi. 296; E. incana, Turcz. in Bull. 

 Mosc. 1851, ii. 85. 

 Hab.: Moreton Bay to Keppel Bay. 



73. GYNURA, Cass. 



(Style-branches tailed.) 



Involucre of nearly equal bracts in a single row with a few small outer ones 

 round their base. Eeceptacle without scales. Florets all tubular, hermaphrodite, 

 5-toothed. Anthers obtuse at the base. Style bulbous at the base, the branches 

 ending in long linear hairy points. Achenes striate. Pappus of numerous 

 capillary bristles. — Herbs, often somewhat succulent. Leaves alternate. Flower- 

 heads terminal, solitary or loosely corymbose. Florets yellow. 



A small genus, confined to the tropical and subtropical regions of the Old World, the only 

 Australian species being the same as an Indian one. — Benth. 



1. Gr. pseudochina (false China), DC. Prod. vi. 299 ; Benth. Fl. Austr. 

 iii. 661. Eootstock perennial, thick and fleshy. Stems erect or ascending, 



1 to 2ft. high, somewhat succulent, leafy in the lowet part only, ending in a long 

 almost leafless peduncle bearing either a single flower-head or a loose corymb of 



2 to 7 or 8 heads. Leaves petiolate, obovate, ovate-oblong or lanceolate, coarsely 

 toothed, rather thick, pubescent or nearly glabrous, 2 to 3 or even 4in. long, the 

 petiole often expanded at the base into 2 auricles or lobes. Flower-heads about 

 7 lines long. Involucre of about 12 narrow bracts with several short outer ones. — 

 G. ovalis, DC. and other .synonyms adduced in Benth. Fl. Hongk. 189 ; Senecio 

 drymophUus, F. v. M. in Trans. Phil. Inst. Vict. ii. 69. 



Hab.: Through the colony, often on damp coastal rocks. 



The Himalayan G. nepalensis, DC, ought, however, perhaps to be added to the synonyms as 

 a more pubescent variety, the Australian ones being in this respect intermediate between that 

 and the typical form. — Benth. i 



74. EMILIA, Cass. 



Heads homogamous discoid, florets hermaphrodite, orange or scarlet. In- 

 volucre cylindrical or campanulate. Bracts 1-seriate, equal, without a calyculus. 

 Receptacle naked. Anther-base unappendaged, style-branches terminating in 

 an acute appendix. Achenes 5-angled or subterete. Pappus of copious fine, 

 white, soft bristles. — Herbs with radical or alternate cauline leaves and loosely 

 cymose or subsolitary pedunculate heads. 



A small tropical genus, scarcely distinguishable from Senecio. 



1. E. sonchifolia (Sonchus-leaved), DO. Prod. vi. 302. Glabrous or 

 puberulous, somewhat glaucous annual, 1 to 3ft. high, erect or diffuse, more 

 or less branched. Leaves lyrate or cordate-amplexicaul, more or less toothed, 

 1 to 4in. long, sessile or the lowest ones petiolate, the upper ones auriculate. 

 Heads cylindrical, about fin. long, on slender pedicels ranging up to 2in. long, 

 in a rather lax cyme. Involucral bracts glabrous or puberulous, linear, acute, 

 equalling the purple or orange-purple florets. — Cacalia noncJiifolia, Linn. Sp. PL 

 ed. i. 835; E. purpurea, Cass. Diet, xxxiv. p. 393, and F. v. M. Fragm. xii. 21. 



Hab.: Thursday Island, Endeavour Eiver, and other localities along the tropical oorst. 



