Composite.] 



CALIFORNIA.— SUPPLEMENT. 



355 



Of this we have received one specimen, from the herbarium of the Hort. Soc. of London, under the name 

 of Lasthenia glabrata. Indeed, Hologymne glabrata, Lasthenia glaberrinria, Burrielia gracilis, and the 

 present plant, are so similar in appearance, as to be often confused in herbaria and in gardens. The four 

 may. however, at all times, and under all aspects, be readily distinguished by attending to the involucre and 

 pappus. Burrielia and Lasthenia have a paleaceous pappus — Hologymne and Baeria none ; — on the other 

 hand, in Burrielia and Baeria the leaflets of the involucre are distinct from each other, in Lasthenia and 

 Hologymne they are united. 



I. Helenium pubescens. Ait. ? — Hook, et Am. supra, p. 149 — H. puberulum. De Cand. 

 Prod. 5. p. 667. — Cephalophora decurrens. Less, in Linn. 6. p. 517. De Cand. Prod. 5. 

 p. 663. 



The specimens collected by Mr Douglas, and named by De Candolle //. -puberulum, are younger, taller, 

 less branched, and not so dark coloured when dry, as those from Chamisso's and Beechey's collection ; but 

 they all appear to us to belong to the same species. De Candolle says the lower leaves are incised, but these 

 we have not seen. 



1. Madia sativa. Mol. — De Cand. Prod. 5. p. 691 M. viscosa. a. Hook, et Am. supra, 



p. 145. — Sclerocarpus gracilis. Smith in Bees' Cycl. n. 2. De Cand. Prod. 5. p. 666. 



1, Madaria elegans. De Cand. Prod. 5. p. 692. — Madia elegans. Don in Bot. Beg. t. 

 ]458. — M. viscosa, 0. Hook. PI. Bor. Am. 2. p. 24. Hook, et Am. supra, p. 145. 



2. M. corymbosa. De Cand. Prod. 5. p. 692. — 13. ? hispida. De Cand. I. c. 



The Californian plant belongs to the var. /3. Besides those mentioned by De Candolle, Sclerocarpus exi- 

 guus, Sm. in Rees' Cycl. (De Cand. Prod. 5. p. 566), belongs to the present genus. It is a slender species, 

 about four inches high ; leaves free from glands, half an inch long and half a line broad ; branches filiform, 

 few, leafless, one-flowered, about an inch and a half long, with a few glandular hairs near the apex ; involucre 

 of few leaves, covered with glandular hairs ; flowers of the ray from four to seven ; the ligula small and 

 inconspicuous ; the florets of the disk are quite abortive. 



1. Hemizonia congesta. De Cand. Prod. 5. p. 692. 



Our specimen is shrubby at the base, the leaves linear-lanceolate and quite entire. The first section of 

 this genus is so closely allied to Madaria, both in character and habit, that we can point out no mark by 

 which it may be readily distinguished, except that the achenia are obovate trigonous, the flat face being 

 towards the disk ; while in Madaria, the achenia are laterally compressed. The stipes is remarkably 

 curved up against the face of the achenium. 



2. H. tnullicaulis ; herbacea rnulticaulis, caulibus simpliciusculis vel apice corymbose 

 ramosis pilis patentibus mollibus hirsutis, foliis radicalibus lineari-lanceolatis serrulatis 

 plurinerviis glabriusculis, caulinis villosiusculis longe linearibus, inferioribus oppositis 

 serrulatis villosiusculis, superioribus alternis subintegerrimis, capitulis bracteatis 2-3-nis 

 congestis, acheniis obovatis obtusis stipite rostelliformi inflexo. 



We cannot persuade ourselves that this is a mere form of the preceding, to which, however, it is very 

 closely allied, except in habit. The root seems annual, or rather biennial, while H. congesta appears quite 

 woody at the base. To the description given by De Candolle of H. luzulmfolia, this certainly approaches ; 

 but there is no corymb, and we do not find paleae over the whole receptacle. 



