174 CHARACTERS OF SOME GNAPHALIOID COMPOSITÆ. 
lantibus. Flores omnes hermaphroditi, ii capitulorum marginalium 
fertiles, cæteri abortu steriles. Corolla tubulosa, limbo 5-partito, 
lobis oblongo-lanceolatis revolutis. Authere basi bicaudatæ, caudis 
piliferis, Styli rami apice capitellati. Achenia erostria, glabra; 
fertilia obovata, pellicula hyalina humectate creberrime gelatinosa 
induta; sterilia linearia, inania. Pappus florum fertilium parce plu- 
mosus, caducus, corolla paulo brevior, e setis 5—6 tenuissimis basi 
annulatim coalitis, 1-2 paulo longioribus inferne nudiusculis et apice 
clavellato-plumosis; florum sterilium persistens, setis rigidioribus 
basi subdilatatis cæterum fere similibus.—Herba annua spithamea, 
ramosa, lanato-pubescens; foliis alternis anguste linearibus; caule 
ramisque gracilibus erectis ; glomerulis capituliformibus parvis (2-3 
lin. latis) aureis, ramulos graciles terminantibus, nutantibus. (Nomen 
ex ävêos, flos, eios, facies, et cwpds, acervus, conflatum, quia glomeru- 
lum singulum florem compositum botan. antiquorum simulat.) 
A, gracilis, (Ic. Pl. tab. ined.) 
Swan River, Drummond.—This curious plant would probably on 
ordinary inspection be referred to the division Cussinieæ, and perhaps 
rightly; but the pales, although perfectly sessile on the general re- 
ceptacle, are three or four for each flower, and surround it, so as to 
form a partial involucre, as is more readily discerned around the mar- 
ginal fertile flowers. The structure of the glomerule, on this view, is 
much as in Myriocephalus, next to which genus I venture to place it. 
MYRIOCEPHALUS, Benth. Pl. Hugel. p. 61. 
Ad char. adde: Receptaculum generale latum, planum. Pappus aut 
nullus, aut 2—3-setosus, setis nudis, — Herbs annuæ. 
1. M. appendiculatus, Benth. l. c.—This is an annual, at least if 
specimens in Drummond's collection are the same as the original 
species. These are barely six inches high, the glomerule less ihan. 
half an inch broad; the scales of the partial involucres are sparsely 
lanate, and the ovaries are not entirely glabrous. 
2. M. nudus (n. sp.) : involucro generali inconspicuo glomerulo multo 
breviore, squamis appendice minima fusca auctis; involueris par- 
tialibus 3—4-floris subglabris; achzeniis calvis. 
Swan River, Drummond.—Stems, foliage, &e., nearly as in the pre- 
ceding. Glomerule from three to six lines broad, at length much 
depressed, appearing like a discoid capitulum, the appendiculate scales 
