vot. 1v.] Southern Extension of California Flora. 209 
Polygonum amphibium 1, San Pedro Martir. 
Eriogonum Wrightit Torr. San Pedro Martir. 
Platanus racemosa Nutt. Slopes of San Pedro Martir. 
Phoradendron juniperinum var. Libocedri Engelm. Growing 
on Libocedrus decurrens. 
Phoradendron Bolleanum. Eichl. Growing on Cupressus 
Guadalupensis. 
Arceuthobium occidentale Engelm. On P. ponderosa. 
Euphorbia Palmeri Engelm. San Pedro Martir. The speci- 
mens show the gland erose rather than crenate. It is common 
and usually yellow with a conspicuous Afcidium. 
Populus tremuloides Michx. San Pedro Martir. Found grow- 
ing in several places. 
Quercus agrifolia Née. Base of San Pedro Martir, Santa 
Cruz Creek. Very large trees. 
Quercus Wislizent A. DC. San Pedro Martir, in the form 
of large bushes. 
Quercus chrysolepis Liebm. Common on San Pedro Martir. 
Quercus grisea Liebm. Very abundant on the higher eleva- 
tions of San Pedro Martir. 
Quercus dumosa Nutt. Hills near San Telmo. 
Sisyrinchium bellum Wats. San Pedro Martir. 
Smilacina stellata Desf. San Pedro Martir. 
Juncus triformis var. uniflorus Engelm. San Pedro Martir. 
Sometimes so abundant as to redden moist ground. The speci- 
mens are all dimerous and even smaller than those noted by Dr. 
Engelmann. 
Epicampes rigens Benth. San Pedro Martir. 
Elymus Sitanion Schult. San Pedro Martir. 
Juniperus Californica Carr. This large bush or small tree is 
common on the hills about the base of San Pedro Martir and has 
been collected much farther south. 
Cupressus Guadalupensis Watson. San Pedro Martir. Seen 
in but one locality. 
