134 
BOTANY. 
SANTALACEiE. 
ComandbA UMBELLATA, Nutt. Gen. 1, p. 157; Hook. FI. Bor.-Amer. 2, p. 139, t. 179 ,fig. A; 
Torr. Ft. N. York 2, p. 160. Hill-sides, Sonora, California; May 9. This plant lias a very 
extensive range both in latitude and longitude, being found from British America to Georgia 
and Texas, and from the Atlantic to the Pacific. In the south, and far to the west, it is often 
suffrutescent, which is not the case in the middle States. Mr. Stauffer, of Mount Joy, Pennsyl¬ 
vania, has clearly established the parasitism of Comandra to he similar to that which M. Mitten 
had previously ascertained of Thesium. 
LORANTHACEiE. 
Piioradendron flavescens, Nutt, hi Jour. Acad. Phil. n. ser. 1, p. 185; Engelm. in Gray PI. 
Fendl. p. 59. Viscuni flavescens, Pursh , FI. 1, p. 114. Y. Reicheubachianum, Seem. Bot % 
Herald, p. 294 t. 62. On Williams’ River ; February. The anthers are only one-celled, with 
a transverse terminal slit. 
Yar. pubescens, Engelm. in Gray, PI. Lindh. 2, p. 212. Parasitic on Quercus agrifolia. Napa 
Yalley, Corte Madera, &c., California. Differs from the ordinary form of P. flavescens only in 
its pubescence, and smaller leaves. 
Var. orbiculatum, Engelm. 1. c. Pass of Mount Hope, and near White Cliff Creek, Western 
New Mexico ; on Quercus Emoryi. Fruit ripe in January. Dr. Bigelow found at Cajon Pass, 
on what seems to be a dwarf oak, a Phoradendron with ovate nearly sessile and very thick leaves, 
which are scarcely more than half an inch in length, and clothed (as well as the young branches) 
with a dense pubescence. There were only a few separate berries accompanying the specimens. 
It may be P. villosum of Nuttall. Our materials are scarcely sufficient for identifying the species. 
Piioradendron pauciflorum (n. sp.): ramis teretibus ; foliis spathulatis v. spathulato-lineari- 
bus enerviis junioribus pubescentibus demum glabratis crassis ; spicis brevipedunculatis simpli- 
cibus capitatis oblongisve pauci-(4-8)-floris foliis multo brevioribus ; floribus pierumque 3-lobis- 
On Juniperus occidentalis and Abies Douglasi, Duffield’s Ranch, Sierra Nevada. Branches 
3-6 inches long, stout. Leaves three-fourths of an inch to an inch long, 2-3 lines wide. 
Anthers 2-celled, opening by two terminal transverse chinks. There is an abortive ovary with 
a distinct style in the male flowers. Berries apparently white, about one line in diameter in 
the dried specimens. This seems to be a widely spread species. Dr. Gregg found it at San 
Antonio de los Alanzanes, Mexico. It also occurs in Sonora, and Mr. Wright collected it in 
New Mexico. 
Piioradendron Californicum, Nutt. 1. c.; Engelm. 1. c. Williams’ River, growing on 
Parkinsonia microphylla ; also near the Colorado, on Cercidium floridum, bearing fruit in Feb¬ 
ruary, probably formed in the autumn of the preceding year. Specimens with small flowers 
were collected near Fort Yuma by Major Thomas. Branches pubescent when young, but at 
length nearly or quite smooth. Spikes, in the specimens from the Colorado, three-fourths of an 
inch long and many-flowered, with several approximated whorls ; but often only 4-8-flowered. 
Berries globose, apparently reddish, about two lines in diameter. Perianth 3-4-lobed. Anthers 
oblong, 2-celled, adnate by the middle to the calyx ; the cells opening longitudinally on their 
face the whole length of the anther. This species differs in the structure of the anthers from the 
character of Phoradendum as given by Nuttall and Engelmann. When dry, the whole plant is 
of a grayish-brown color. 
Piioradendron juniperinum, Engelm. 1. c. On Williams’ River ; also in the Desert, 50 miles 
west of the Colorado. It grows on different species of Juniperus. Only fruiting specimens 
were found. This is a common species in New Mexico, but we have never seen the male flowers. 
Arceutiiobium cryptopodum, Eiigelm. in Gray, PI. Lindh. 2 , p. 214. On Pinus brachyptera. 
Sierra Madre and Leroux’s Spring, near San Francisco mountain, Western New Mexico. Our 
