862 LXV. COMPOSITJE. [WedeLia. 



petiolate, from broadly ovate to ovate-Ianoeolate, the lowest sometimes 3 or 4in. 

 long and very broadly cordate^ the others usually smaller and often cuneate at the 

 base, all acute or acuminate, slightly toothed, S-nerved. Flower-heads most 

 frequently 3 on short or long peduncles or sometimes more in ^a loose corymb. 

 Involucral bracts nearly equal in about 2 rows. Kay-florets 10 to 12 or some- 

 times more, the ligules oblong, entire or minutely 8-toothed, 2 to 3 lines long. 

 Achenes obtuse at the edges, without any pappus or with 1 to 3 small slender 

 deciduous awns. — WoUastonia biflora, DC. Prod. v. 546 ; Wight, Ic. t. 1108 ; 

 Benth. Fl. Hongk. 183, with the synonyms there adduced ; W. inmlaris and II'. 

 Forsteriana, DC. Prod. v. 548. 



Hab.: Islands of the Gulf of Carpentaria and Torres Straits, Port Curtis and Lizard Islands ; 

 Bay of Inlets, Banks and Solander ; Rockingham Bay, Dallachy ; Brisbane Biver, Moreton Bay, 

 P. V. Mueller ; on the coast generally. 



This species is widely spread over East India, extending westward to east tropical Africa, 

 and eastward to the Archipelago and -south China. — Benth. 



5. W. asperrima (very rough), Benth. Fl. Austr. iii. 539. Coarse and erect, 

 1 to 2ft. high, but apparently annual, very scabrous, especially the foliage, with 

 rigid appressed hairs. Leaves petiolate, from oblong-lanceolate to linear-lanceolate, 

 mostly acuminate, 2 to Sin. long, irregularly toothed, narrowed at the base. 

 Flower-heads several, in a loose terminal leafy panicle on rigid peduncles longer 

 than the leaves. Involucre nearly hemispherical, the bracts rather numerous, 

 acuminate, the outer ones 4 to 5 lines long, the inner ones scarcely shorter. 

 Scales of the receptacle very acute and rigid. Eay-florets 10 to 12 or even 

 more, oblong. Achenes with obtuse edges, not at all winged or without any 

 pappus. — WoUastonia asperrima, Dene. Herb. Timor, Descr. 86, and DC. Prod. 

 547 (?), from the character given. 



Hab.: Cape Tork Peninsula. 



69. SPILANTHES, Linn. 



(Spot-flower; original species having a circumference yellow and the 

 centre dark to the flower-heads.) 



Involucral bracts in about two rows nearly equal, usually broad and thin. 

 Receptacle chaffy, very conical. Eay-florets female, ligulate, or sometimes 

 none. Disk-florets small, hermaphrodite, tubular, 5-tooth6d. Anthers obtuse 

 at the base. Style branches truncate. Achenes of the ray 3-angled, those of 

 the disk flattened, the angles or margins usually oiliate. Pappus of 2 or 3 short 

 fine awns or bristles proceeding from the angles, sometimes wanting. — Herbs 

 with opposite leaves. Flower-heads usually on long peduncles, the ray yellow or 

 white. 



The genua is widely dispersed over the tropical regions both of the New and the Old World. 

 The 2 Australian species extend into the Indian Archipelago. — Benth. 



FlQwar-hea|s with yellow rays }. S. grandifiora. 



1 lower-heads discoid, without rays 2. S. anactvna. 



1. S. grandiflora (large flower-heads), Turcz. in Bull. Mosc. 1351, i. 185 ; 

 Benth. Fl. Austr. iii. 541. Decumbent, loosely branched, glabrous or strigose- 

 pubescent, attaining 1 to 2ft. in length. Leaves shortly petiolate, ovate- 

 lanceolate, lanceolate, or rarely linear, entire or with a few coarse teeth below the 

 middle, 1 to 2in. long, 3-nerved, glabrous or sprinkled with, a few hairs. 

 Involucral bracts ovate or ovate-lanceolate, scarcely 2 lines long. Eay-florets 

 ligulate, yellow, twice as long as the involucre in the normal form but variabk 



