BOTANY. 
107 
Burrielia tenerrima, DC. Prodr. 5, p. 663. Cocomungo, California ; March. In the same 
head some of the flowers present a pappus of a single large palea, (awned from a "broad base ;) 
others have a minute rudiment of a palea, the greater number none at all ; thus destroying all 
claims of Baeria to rank as a genus. Perhaps the epappose state of more than one Burrielia may 
have been referred to B. chrysostoma. 
Burrielia (Dichaita) lanosa (sp. nov.):. pygrmea, arachnoideo-lanata, foliosa ; foliis lineari- 
bus plerumque integerrimis ; capitulo sessili; involucri squamis oblongis ligulisque ovalibus 
(albis ?) 8; antheris appendice setiformi auctis ; pappo ex aristis 4 suhulatis scabris corolla 
paullo brevioribus et squamis totidem oblongis obtusis denticulatis alternantibus. Gravelly 
hills near the Colorado of the West; February. The specimens are barely an inch high from 
a slender annual root, leafy to the head, and clothed throughout with a loose white wool. They 
are evidently early seedling plants, flowering at the first approach of spring, but probably 
branching and increasing considerably in height as the season advances. They were found 
growing along with equally pigmy specimens of Eremiastrum bellidioides. Perhaps the wool is 
deciduous with age. Leaves half an inch long, tapering downwards, one of them is two-lobed 
at the apex. Involucre campanulate, two and a half or three lines long, resembling that of a 
Bahia Eriophyllum. Ligules two lines long, broadly oval, truncate and emarginate or three¬ 
toothed at the summit. Disk-flowers yellow. Anthers tipped with a setiform appendage almost 
of their own length. The intermediate palem of the pappus almost half the length of the aris- 
tiform ones, which are about two-thirds the length of the disk-corolla. Ovaries linear, minutely 
hairy. 
Helenium autumnale, Linn. Springs and wet places on the upper Canadian ; September. A 
roughish and rigid-leaved state. 
Helenium Mexicanum, H. B. K. Nov. Gen. & Spec. 4, p. 299; DC. Prodr. 5, p. 666. Bolinas 
Bay, California; April. The same as No. 357 of Coulter’s California collection. The pappus 
is from a third to half the length of the disk-corolla, as it is in Humboldt’s plant. 
Helenium Bigelovii (sp. nov.): subglabrum ; caule bipedali simplici apice longe nudo mono- 
cephalo vel superne parce ramoso; ramis monoceplialis ; foliis lineari-lanceolatis integerrimis 
parallele triplinerviis basi plerumque in caulem decurrentibus ; ligulis palmatifidis involucri 
squamis suhulatis et disco hemisphmrico paullo longioribus ; pappi paleis 5-7 ovato-lanceolatis 
aristatis corolla 5-dentata tertia parte breviore. Swamps near Santa Rosa Creek, California ; 
May. Plant, when single-stemmed and simple, with much the aspect of a Leptopoda and of 
Hecubma; the striate stem moderately leafy below, its naked summit or peduncle 10 or 12 inches 
long, thickened under the head. One specimen, however, is considerably branched above. 
Leaves from 3 to 6 inches long, 3 to 5 lines wide, erect, tapering to each end; the lower ones 
again dilated at the insertion, and mostly decurrent on the stem into a slight or manifest wing; 
fhe radical leaves similar, or rather shorter and broader. Rays numerous and crowded, bright 
yellow. Disk two-thirds of an inch in diameter, between hemispherical and depressed-globose, 
as is the receptacle, considerably larger than in any form of H. autumnale, but the rays not so 
long in proportion. This handsome and well-marked species is dedicated to the discoverer. 
Actinella Richardsonii, Nutt, in Trans. Amer. Phil. Soc. 1. c.; Gray , PI. Fendl. p. 101. 
Pine and Cedar woods near Galisteo, New Mexico ; October. 
Actinella leptoclada, (sp. nov.): caulibus e caudice perenni crasso multicipiti gracilibus 
ramosis foliosis; ramis apice longe nudis monoceplialis ; foliis lineari-spathulatis, radicalibus in 
petiolum attenuatis subtrinerviis subtus vel utrinque sericeo-canescentibus, superioribus viridulis; 
involucri squamis biserialibus oblongis cano-villosis ; receptaculo acute conico ; pappi paleis 5 
obovato-rotundis integerrimis subito longiuscule aristatis. In mountains and rocky places near 
Santa Antonita, New Mexico ; October. Caudices 1 or 2 inches long, cespitose, clothed with 
the scaly bases of former leaves mixed with villous hairs, as in other species ; the slender and 
loosely-branched flowering stems 8 or 9 inches high, 4-6-leaved. Leaves 1 or 2 inches long, 1| 
to 3 lines wide, the radical often spatulate and silky-canescent, at least beneath, nearly as in A. 
