94 
BOTANY. 
crassa, spongiosa. Herba Californica, glabra. Folia decomposita. Involucrum oligophyllum 
Involucella 6-8-phylla. 
Cynapium? (Microt^enia) Bigelovii. Hill sides, near Murphy’s, California; May 16. Stem 3 feet 
or more in height. Lower leaves a foot long, ternately decompound; segments pinnately incised 
with linear-lanceolate lobes. Umbels on long naked peduncles. Eays about 12, 2 or 3 inches in 
length. Involucre of 5-6 linear leaves. Involucels somewhat lateral, the leaflets lanceolate 
and reflexed, longer than the flowers. Umbellets monoecious, many-flowered ; the male flowers 
mostly central. Petals apparently white. Fruit (immature) about 3 lines long ; the ribs very 
indistinct. Vittm extremely minute, forming an almost uninterrupted circle around each meri- 
carp. Differs from Cynapium in its much more compressed fruit, nearly obsolete ribs, and in 
having an involucrum. Very likely the mature fruit would show other differences. 
Tiiaspium montanum, Gray, PI. Fendl. p. 57, and PI. Wright. 2, p. 65. Sandia mountains, 
New Mexico ; October. 
Conioselinum Canadense, Torr. & Gray, FI. 1, p. 69. Near Santa Antonita, in mountain 
marshes ; October. In fruit. 
Deweya? acaulis (sp. nov.): humilis; foliis 5-9-foliolatis e rhizomate repente crasso scaputn 
nudum simplicem subaequantibus ; foliolis cuneatis sessilibus acute trifidis quandoque 3—5-fidis 
lobis patentibus acutis integerrimis ; umbella solitaria; fructu subtereti, valleculis univittatis 
In crevices of rocks near Santa Antonita, New Mexico ; October. Of this there are only one or 
two specimens in the collection, with some mature fruit, but no flowers. The genus is alto¬ 
gether doubtful; but it may, perhaps, be referred to Deweya until it is better known ; although 
the fruit is but slightly campylospermous, so that the plant should, perhaps, be referred to 
the Seselinem. The seeds and the root-stock have a pleasant aromatic odor, much as in Ligus- 
ticum ; from which genus, as well as from Deweya, our plant differs in the single large vittee 
which fill the narrow intervals between the thick and corky, almost winged, rather obtuse ribs. 
Deweya arguta, Torr. & Gray, FI. 1, p. 641. Near San Gabriel; March 22 ; in flower. 
/3. foliis triternati-sectis ; involucellis elongatis. D.? (n. sp.) Benth. PI. Hartiu., p. 312; 
Durand, PI. Pratt, p. 89. Mountains near Oakland ; April 5 ; in flower only. The Oakland 
plant must be only a form of D. arguta, with the leaves more divided than usual. 
Apiastrum angustifolium, Nutt, in Torr. <£■ Gray, FI. 1, p. 644. Hill sides, Napa valley; 
April 26 ; plains near San Gabriel; March 23. We doubt whether A. latifolium is a distinct 
species from this. 
ARALIACEiE. 
Aralia racemosa, Linn. Spec. 1, p. 273 ? Bolinas bay, California; April 19; scarcely in flower. 
The inflorescence is less compound, and the serratures of the leaves are much coarser than in 
the eastern plant. Very likely this will prove to be a distinct species. 
CORNACEiE. 
Cornus Nuttallii, Audubon, Birds of Amer. t. 367 ; Torr. & Gray, FI. 1, p. 655 ; Nutt. 
Sylv. 3, p. 51, t. 97. C. florida, p[ooh. FI. Bor.-Am. 1, p. 277, (ex parte.) Hill sides and 
ravines, Duffield’s Ranch, Sierra Nevada ; May 12 ; in full flower. This beautiful tree attains 
its highest perfection in lower Oregon, where Mr. Nuttall found it growing seventy feet high. 
The involucral leaves vary in form. They are sometimes nearly as broad as in C. florida. 
Cornus sessilis, Torr. (in Durand , PI. Pratt, p. 89): floribus paullo ante folia late ovata subtus 
pubescentia nascentibus ; involucri foliis acutis ; petalis acuminatis. (Tab. VIII.) Wet ravines 
near Grass valley, California ; May 20 ; with young fruit. A small tree, (10-15 feet high,) with 
smooth, slender, flexile branches. Leaves inches long and 1^ inch wide, dull, closely approx¬ 
imated towards the extremity of the flowering branches. Umbel 15-20-flowered, appearing 
