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PLANTEZ FENDLERIANZ. 73 
343. G. (HEMIACHYRIS) SPHHROCEPHALA (sp. nov.): humilis, diffuso-ramosissima ; 
ramulis divergentibus foliosis capitula solitaria majuscula gerentibus ; foliis linearibus uni- 
60) e tubo gracili infundibuliformes, limbo 5-lobo. Styli rami complanati, appendice triangulari acutiuscula 
terminati. Achenia oblonga, compressa, hirtella, radii subtrinervia, disci binervia, nervis marginalibus. Pap- 
pus conformis, duplex, e paleis coriaceis 5 oblongis eroso-truncatis achenio brevioribus, et setis capillaribus 
scabris totidem cum paleis alternantibus corollam subzequantibus, constans. — Herba annua biennisve, pumila, 
Bellidis-facie, cinereo-hirsuta ; caulibus e basi simplicibus monocephalis; foliis obovatis vel spathulatis integer- 
rimis, caulinis parvulis; capitulo majusculo; ligulis albis ; disco luteo. 
D. BELLIOIDES. — Monterey and Buena Vista, Dr. Gregg, Dr. Edwards, and Major Eaton: apparently 
in dry soil; flowering in March. — Plant 2 or 3 inches high, branched from the base; the stems simple or 
nearly so, leafy to the top. Radical leaves an inch long, including the tapering base or petiole ; the cauline 
successively smaller, sometimes minute. Involucre one fourth of an inch in diameter, pubescent with fine 
appressed hairs. Rays linear-oblong, about a fourth of an inch in length, the tube (as also that of the disk 
corollas) slender. — This genus belongs to the subdivision Bellieze, DC., where it will stand between Bellium 
(which it seems to represent in the New World) and Chetopappa. The achenia and pappus are nearly as 
in Bellis, from which it is distinguished principally by the perfectly flat receptacle, the pluriseriate imbricated 
involucre, the manifest tube to the corolla, and the leafy stems. From Cheetopappa it differs in the many- 
- flowered heads with a hemispherical involucre, the flowers all fertile, in the flattened and 2-nerved achenia, 
and the large and thickish scales of the pappus. To avoid an increase of synonymy in case the discovery of 
intermediate forms should invalidate these distinctions, 1 have taken up for the name of this genus a super- 
seded synonyme of Cheetopappa. 
DICHAZETOPHORA, Nov. Gen. 
Capitulum multiflorum, radiatum, heterochromum; fl. radii ligulatis, uniseriatis, foemineis ; disci tubulosis 
hermaphroditis. Involucrum subuniseriale disco brevius; squamis equalibus, lineari-lanceolatis, herbaceis, 
margine subscariosis. Receptaculum ovato-conicum, nudum. Ligule 16-20, oblongo-lineares. Corolle 
disci 5-dentate. Styli rami appendice triangulari-lanceolata complanata terminati. Achenia (lateraliter) 
plano-compressa, ala suborbiculari cincta, marginibus cum disco pilis glochidatis hispidissima. Pappus radii 
et disci conformis, e squamellis minimis paucis (8 — 10) basi coroniformi-subconcretis, et setis tenellis subula- 
tis achenio dimidio brevioribus, constans. — Herba annua, pumila, caulescens, pilosa, Bellidis integrifolie 
facie; caulibus diffusis apice nudo monocephalis ; foliis spathulatis integerrimis ; ligulis albis roseisve ; disco 
flavo. 
D. camprsrris. —(Brachycome xanthocomoides? Torr. § Gray, Fl.11. p. 190.) Around Monterey, 
New Leon, and on the Rio Conchos, Chihuahua (the latter a more slender and less hirsute form), called 
‘¢ Manzanilla del campo,” Dr. Gregg. —Stems branched from the base, 3 to 6 inches long. Heads like those 
of Bellis integrifolia, but the disk more conical in fruit: the receptacle longer than the involucre. Achenia 
half a line long, obovate-orbicular; the wing on each side as broad as the disk, strongly and densely fringed 
with minutely glochidate bristles: these are longer than the subulate squamelle of the pappus, which they 
nearly conceal, but scarcely half the length of the two slender and naked subulate awns. — A comparison 
with the fragment of the Texan specimen in my possession convinces me that this is the plant which is doubt- 
fully referred to Brachycome xanthocomoides, Less., in the Flora of Norih America ; the characters of which 
1 
= Bryfaees cs wee 
‘ile ii bes, 
