BOTANY. 185 
popular names of the plant mentioned in the report here quoted, it is called Sassafras-Laurel, 
Cajeput Tree, and California Olive. The fruit varies from ovate or obovate to nearly globose. 
SANTALACEJE. 
CoMANDRA UMBELLATA, Nutt. Gen, 1, p. 157. Var. ANGUSTIFOLIA. C. pallida, 8 angustifolia, 
Alph. DC. Prodr. 14, p. 637. Hueco mountains and at the Copper Mines, New Mexico; also 
in western Texas, Chihuahua, and Sonora, April. (Nos. 78) and 784, Wright.) We have 
specimens that connect this variety with the ordinary form of the plant. ور‎ ДЫ. 
LORANTHACEÆ. 
PHORADENDRON PAUCIFLORUM, Torr. in Whipple's Rep. p. 134. Sierra del Pajarito, Sonora; 
growing on Juniperus; Schott. Yanos; Capt. E. K. Smith. 
PHORADENDRON CALIFORNICUM, Nutt. in Jour. Acad. Phil. (n. ser.) 1, p. 185; Torr. 1. с. On 
cotton-wood (Populus monilifera) along the lower Colorado of California, March and February ; 
Schott. On mesquit trees (Algarobia glandulosa), borders of the Gila and near Eagle Pass, 
western Texas; Parry, Schott. Fructiferous spikes variable in length. 
PHORADENDRON FLAVESCENS, Nutt. 1. с. var. GLABRIUSCULUM, Engelm. in Gray, Pl. Lindh. 2, p. 
212. Common in the valley of the Rio Grande, on Algarobia (with male flowers only); Schott. 
On the Mimbres, in fruit ; Bigelow. The male spikes vary considerably in length and in the 
number of their joints. Sometimes they exceed the leaves. The axis between the joints is 
thickly covered with flowers, sometimes to the number of 60 or more. 
Var. PUBESCENS, Engelm. l.c. Howard’s Springs; Bigelow. 
PHORADENDRON JuNIPERINUM, Engelm. in Gray, РІ. Fendl. p. 59. Near the Copper Mines, New 
Mexico; Bigelow. Howard’s Springs; Parry. 
ARCEUTHOBIUM CAMPYLOPODUM, Engelm. l.c. On pine trees near Monterey, California; Parry. 
The fertile plant only was collected. 
З ЕОРНОБВГАСЕЖ, 
The genus Euphorbia has been kindly elaborated for this report re my friend George Engel- 
mann, M. D. 
$ I. ANISOPHYLLUM. 
EUPHORBIA PETALOIDEA: patulo-ramosissima ; foliis oblongis oblongo-linearibus linearibusve 
retusis mucronatis ; glandulis albo-appendiculatis ; seminibus levibus. 
а. NICOLLETIE : foliis stylisque brevioribus ; anthodiis cymulosis ; seminibus ovatis. 
8. INTERMEDIA : foliis angustioribus; stylis longioribus ; anthodiis cymulosis. 
т. М№оттаталт: foliis linearibus ; anthodiis alaribus | appendiculis orbiculatis; stylis TERETA, 
seminibus 2 E. arenaria, Nutt. Pl. Arkans. р. 171, поп Н. B. K. 
9. FLAGELLIFORMIS: priori similis, sed appendiculi minimi, styli breves. Of these varieties 
а and 8 have not shen found within the districts explored by the Boundary Commission, but 
they probably occur there. The var. 7 is common in Texas. Wright's 1826, belongs to var. 
9, а New Mexican ie 2; 
i ا‎ Nutt. Le. p.171. 2 In the southwestern parts 
