L>04 BOTANY. 



Chiricahua Agency, Arizona, Rothrock. A form common from South- 

 ern Colorado to N«\\ Mexico unci westward; distinguished from the original 

 J. occidentalis of Oregon and California by its more squarrose growth, thin- 

 ner branches, and smaller fruit. 



Junipeeus paciiyphlcea, Toit. Bot. Whipp. in Pac. R. R. Rep. 4, 142; 

 Engelm. I. c. 589. — A middle-sized tree, with spreading head and thick, 

 fissured hark; branchlets slender; leaves elongated, often resinifcrous on 

 the back, with slightly denticulate margins ; berries large, glaucous, many- 

 seeded. 



An important tree in Western New Mexico (Fort Wingate, Rothrock, 

 number 140, in 1874) and Northern Arizona; readily distinguished from 

 all the other species by its bark, which Dr. Rothrock compares with that 

 of the white oak, and others with the bark of pine. 



Juniperus Califoknica, Carr., var. Utaiiensis, Engelm. Junip. 588. — 

 More slender than the western type, J. Californica, with thinner branches 

 and smaller, not so strongly fringed leaves, often in twos; smaller, more 

 globose berries; embryo with 5 cotyledons, as in the species. 



Camp Apache, Arizona, Gilbert, Rothrock. 



GNETACE^. 



EniEDRA antisypiiilitica, C A. Meyer. — Arizona and New Mexico. 

 Ephedra trifurca, Toit. — Arizona and New Mexico. 



ENDOGENS. 



ORCHIDE^. 



Micrcstylis Montana. — Bulb 1' in diameter; stem C-15' high, with 

 2-3 broad sheaths at base ; 1-2 oblong-lanceolate, obtuse leaves, tapering 

 below into sheaths ; flowers many, sessile in a narrow spike (which is 2-5' 

 long), yellowish-white, without the ovary 1" long, each one subtended by 

 an oval bract 1" long ; sepals equal or nearly so, oval, rather obtuse ; lip 

 next the axis, somewhat triangular-ovate, conspicuously sagittate at base, 

 but obtuse or occasionally notched at apex ; lateral petals filiform (usually 

 coiled up), somewhat longer than the sepals; column very short, tapering to a 

 point, and with <t very minute tooth on either sidebeloie ; stigma a small <l<pns- 



