102 
BOTANY. 
Berlandiera lyrata, Benth. PI. Hartw.; Gray, PI. Fendl. p. 78. Plains of the Canadian; 
September. 
Engelmannia pinnatifida, Torr. & Gray. Prairies, on the Canadian ; September. 
Parthenium incanum, H. B. K. Nov. Gen. & Spec. 4, p. 260, t. 391. Rocky hills, between 
the Canadian and the Pecos ; September. 
Eupiirosyne xanthiifolia, Gray , PI. Wriglit. 2, p. 85. Cyclachaana xanthiifolia, Fresenius. 
Bottom of creeks, Comanche plains, Northwestern Texas, September. 
Iva ciliata, Willd.; Torr. & Gray, FI. 2 , p. 287. On Deer creek ; August. 
Ambrosia aptera, DC. Prodr. 5, p. 527 ; Gray, PI. Lindh. 2, p. 226. On the Canadian; 
August. 
Ambrosia coronopifolia , Torr. & Gray , FI. 2, p. 291. With the preceding. 
Eranseria ambrosioides, Cav. Ic. 2, t. 200. Mountain canons, near Bill Williams’ fork; 
February, (in fruit.) 
Franseria dumosa, Gray, in Frem. Beport 2 , p. 316 ? On the Mohave river, March. Branches, 
destitute of inflorescence. 
Franseria tenuifolia, var. tripinnatifida, Gray, PI. Lindh. 2, p. 227. Plains, between the 
Canadian and the Pecos ; September. • 
Franseria Hookeriana, Nutt.; Torr. <& Gray, FI. 2 , p. 294. Low places, Pecos to Galisteo; 
September—October. 
Franseria tomentosa, Gray, PI. Fendl. p. 80. Bottoms of the Canadian ; September. The 
specimens resemble those of Fendler, and hear mature fruit. 
Xantiiium echinatum, Murray; Torr. & Gray, FI. 2, p. 295. On the Canadian river. 
Zinnia (Diplothrix) grandiflora, Nutt.; Gray, PI. Fendl. p. 81, & PI. Wright. 1, p. 105. 
Dogtown prairies, Northwestern Texas ; September. 
Wyethia helenioides, Nutt.; Gray, PI. Fendl. p. 82. Alarqonia helenioides, DC. Prodr. 5, 
p. 537. Hill-sides, Oakland, California ; April. 
Wyethia augustifolia, Nult. in Trans. Amer. Phil. Soc. 1. c.; Torr. & Gray, FI. 2, p. 300. 
Hills, near Punta de los Reyes, California ; April. 
Wyethia scabra, Hoolc. in Bond. Jour. Bot. 6, p. 247 : foliis linearibus seu lineari-lanceo- 
latis acutatis (inferioribus srnpe oppositis) integerrimis sessilibus venoso-trinervibus utrinque 
cum caule stricto gracili ultrapedali hispidulo-scaberrimis ; capitulo solitario nudo ; involucro 
hemisphmrico disco breviore, squamis pluriseriatim imbricatis appressis coriaceis ohlongis, ex- 
terioribus appendice foliosa lineari patente auctis, interioribus pungenti-mucronatis ; acheniis 
glaberrimis compresso-quadrangulatis pappo brevissimo calyculiformi irregulariter dentato 
coronatis. Sand bluffs, near Inscription Rock, on the Puerco of the West, New Mexico. A 
remarkable species, of which only fruiting specimens were gathered. The stems are over a 
foot long, and do not show the base ; possibly they are only branches, but they are perfectly 
simple. These, like the leaves, (which are 4 to 6 inches long, and 3 to 7 lines wide,) are very 
rough with short and close papillose bristles, much as in Helianthus Maximiliani. The short 
and sparing veins are confluent into a false nerve within the margin on each side, making the 
leaf appear three-nerved. Head short-peduncled, an inch in diameter. Rays not seen. Disk- 
corollas slender, glabrous. Achenia about 4 lines long, the angles very acute. This species 
completes the parallel between Wyethia and Balsamorhiza, having the involucre imbricated as 
in Balsamorhiza Hookeri, &c., while several species of the latter genus are now known with the 
entirely foliaceous involucres of Wyethia helenioides, augustifolia, &c. Without doubt, the 
plant described above is the same as that of Geyer. 
Balsamorhiza macropiiylla, Nutt. 1. c.; var. pube minuta molli canescens ; foliis plerisque 
elongatis (radicalibus subpedalibus) circumscriptione lanceolatis 1-2-pinnatipartitis, segmentis 
stepe dentatis incisisve ; involucri squamis exterioribus magnis foliaceis elongato-oblongis seu 
spathulatis quandoque dentatis. Hill-sides, near Sonoma, California ; May. All the species cf 
this group are extremely variable in foliage. I possess only a leaf of Nuttall’s B. macrophylla, 
