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BOTA-NY 



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 ohovate to nearly globose. 



SANTALACE^. 



CoMANDRA UMBELLATA, Mitt. Gen, 1, p, 157. Var. ANGUSTiFOLiA. C. pallida, /9 angustifolia, 

 Aljoh. DC Prodr. l^^i?. 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 



\ I specimens that connect this variety with the ordinary form of the plant. 



LORANTHACE^. 



Phokadendrox pauciflorum, Torr. in Whipple's Rep. p. 134. Sierra del Pajarito, Sonora ; 

 growing on Juniperus ; Schott. Yanos ; Capt. E. IC Smith. 



Phoradendeon Caltfornicum, Nutt. in Jour. Acad. Phil. {n. ser.) ], p. 185 ; Torr. I. c. On 

 cotton-wood (Populus monilifera) along the lower Colorado of California, March and February; 

 Schott, On mesquit trees (Algarohia glandulosa), borders of the Gila and near Eagle Pass, 

 western Texas ; Patry^ Schott. Fructiferous spikes variable in length. 



Phoradendron flavescei^s, Nutt. I.e. var. glabriusculum, Engelm. in Gray^ PI. Lindh. 2,j9. 

 212. Common in the valley of the Rio Grande, on Algarohia (with male flowers only); Scholt. 

 On the Mimhres, 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. I. c. Howard's Springs ; Bigelow. 



Phoradendron junipertnum, Engelm. in Gray^ PI. Fendl, p. 59. Near the Copper Mines, New 

 Mexico ; Bigtloio. Howard's Springs ; Parry. 



Arceuthoeium campylopodum, Engelm. I. c. On pine trees near Monterey, California ; Parry. 

 The fertile plant only was collected. 



EUPHORBIACE^. 



The genus Euphorbia has been kindly elaborated for this report by my friend George Engel- 



mann, M. D. 



§ I. ANISOPHYLLUM. 



Euphorbia petaloidea: patulo-ramosissima ; foliis oblongis oblongo-linearibus linearibusve 

 retusis mucronatis ; glandulis albo-appendiculatis ; seminibus Isevibus. 



a, NicoLLETii : foliis stylisque brevioribus ; anthodiis cymulosis ; seminibus ovatis. 



^. intermedia : foliis angustioribus ; stylis longioribus ; anthodiis cymulosis. 



Y> NuTTALLii: foliis linearibus ; anthodiis alaribus ; appendiculis orbiculatis ; stylis elongatis, 

 seminibus subglobosis. E. arenaria, Nutt. PL ArTcans. p. 171^ non R. B. K. 



d. FLAGELLTFORMis : priori similis, sed appendiculi minimi, styli breves. Of these varieties 



^ 



the districts explored by the Boundary Commission, but 



they probably occur there. The var. y is common in Texas. Wright's 1826, belongs to var. 

 Sy a New Mexican form. 



Euphorbia serpens, R. B. K. E. herniarioides, Nutt. I. c.p, 171. In the southwestern parts 



24 k 



