x 
80 PLANTH FENDLERIANZE. 
+376. F. Hooxeriana, var. foliis magis strigosis subincanis. (F. montana, Nutt. ! 
I. c.) Sandy bed of Dry Creek, east of Bent’s Fort; Sept. (408.) 
+377. F. piscotor, Nutt. 1. c. Between the Rio Colorado and Rock Creek, New 
Mexico; Aug. (411.)— Also gathered by Fremont on the Platte in the Wind. River 
chain of the Rocky Mountains. The fertile involucres are armed with a few strong, 
subulate spines, one-celled, or two-celled at the base. 
+378, F. renvuiroxia (Harv. §& Gray, Pl. Coult. ined.) : caule erecto hispido ; ramis 
diffusis gracilibus; foliis bipinnatisectis strigoso-hirsutis subcinereis, pinnis segmentis- 
que 3—7 linearibus integris seu 1-2-dentatis cum lobulis paucis secus rachin angustam 
parce hispidam hine inde interpositis, lobo terminali prelongo; racemis spiciformibus 
gracilibus in paniculam foliosam digestis; involucris masculis pedicellum sequantibus 
7—8-dentatis 6—12-floris, foemineis inferne glomeratis aculeis paucis brevissimis unci- 
natis armatis intus bilocellatis bifloris. — Poni Creek, between Bent’s Fort and Santa 
Fé ; also at Santa Fé; July to Oct. (406.)— This appears to be the same as a plant 
in Coulter’s Californian collection; and perhaps is too closely related to F. hispida, 
Benth. in Bot. Voy. Sulph. p. 25; but the lobes of the leaves are not “ dentibus obtusi- 
_usculis brevibus crispis,” but entire or nearly so; the sterile involucres are merely tooth- 
ed, and the fructiferous involucres examined are only two-celled. 
1379, F. romenrosa (sp. noy.): herbacea, pube sericeo molli undique argenteo- 
incana ; caule erecto (pedali) paniculato; foliis pinnato-3— 5-partitis subtus presertim 
dealbatis in petiolum brevem angusto-marginatum lobulis dentiformibus hinc inde appen- 
diculatum decurrentibus, infimis videtur bipinnatifidis, lobis superiorum et ramealium ob- 
longis lanceolatisve dentatis seu integerrimis, nisi terminali maximo trilobo; involucris 
masculis in racemum densum digestis 6-dentatis 18 —20-floris foemineis in axillis supremis 
glomeratis ovoideis viscoso-puberulis aculeis subulatis validis apice subuncinatis obsitis 
atque 2 crassioribus rostratis intus bilocellatis bifloris. (Ambrosia tomentosa, Nutt. Gen. 
2. p. 186 ?) — High banks of Walnut Creek, between Council Grove and Fort Mann, of 
the Arkansas; Sept. (412.) — Root perennial. Stem stout, bearing numerous panic- 
ulate branches. Leaves silyery-tomentose and very white underneath, the upper sur- 
face whitened with a less dense and somewhat deciduous pubescence ; the terminal lobe 
from 12 to 23 inches in length and half an inch to an inch in width. Sterile involucre 
3 lines in diameter; the fertile (immature) larger, thickly beset with short’ and stout 
apicem squamas dilatato-obovatas basi vix crassiores in verticillum congestas gerente. — Along the valley of 
the Gila, Lieut. Emory. Also at “ Ojito,” New-Mexico? Dr. Gregg. Shrub 4 or 5 feet high, with much the 
aspect of a Wormwood ; the filiform leaves about two inches long. Fertile involucres only one fourth the 
size of those of the foregoing species. I have not examined the sterile heads. 
Sete ACh hic 
