BOTANY. 



68 



pRUNUs DEMISSA5 Niitt. in Torr, ct Cray^ FL l.jp. 411, (sub Cera«'\) On the inount:iin^ ca<i 

 of San Diego, California^ June, in flower ; Parry. A ^lirub seldoin more than from 4 to 8 



feet high, 



PjiUNUs ILKIFOLIA5 Niitt. I. c. (sub Cerasoj) d: N. Amcr, Sylv. 2, p. IG, t, 47 ; ffook. tt Am, 

 Bof, Beechey^ p. 340, t. 83. Near San Diego, and in other parts of California, May; Parry, 



■ 



Tliurhcr. This ornamental species seldom attains a greater height than 8 or 10 feet. The 



pulp of the fruit is flesh color and rather thin, but pahitable. 



Prl'NUS subcoedata, BentJi. PL Hariio\ p. 308, Eastern slope of the Cordilleras of ralifornia, 

 and near San Felipe. A straggling bush 4 to 5 feet high. Fruit sub-globose, half an incli in 

 diameter, the pulp thin and disposed to separate into two valves. 



pRUXUS MixuTFPLORA, Engelm, in PL Lindh. 2. p. 185 (sub Pruno) ; Gray^ PL IVrighL 1, p. 

 68. Gravelly places and ravines between Devil's River and the Rio Grande; also in Chihua- 

 hua ; Parry^ Bigdow, 



_ * 



XuiTALLiA CERASiFORMis, Torr. (f" Gray, in Bot. Beecliey, p. 336, t. 82, cf: FL 1, j>. 41 '2 

 Napa county, California, March — April; Jhurher. San Lnis Obispo, in the same Slat l' ; the 

 most southern station of this plant that has come to our knowlcnlge. 



?riR.T:A ARLEFOLiA, Smith, in Bees Cyclop.; Torr. & Gray, Fl. \,p, 41G. Monterey, Califor- 

 nia, May; Parry, 



Hook 



Mountains near the Copper Mines, New Mexico, May, in flower, and August, in fruit ; Bigdow. 



Spir^a c^sriTosA, Nutt. in Torr. tC Gray, FL 1, p. 418. Sides of steep and almost inacoes- 

 sible rocks on the Rio Grande, about 25 miles below El Paso, in Chihuahua, June ; BUjehw. 



Cercocarpus parvifoltus, Nuit. I. c. p. ATI ; Hooh, Ic. t. 323. C. betulifolius, Nuit. L c. 

 Valley of the Upper Rio Grande, and westward to California. Flowers in May and June, fruit 

 matures in September. The limb of the calyx early breaks away from the tube, and is carried 

 up, with the petals and stamens, on the elongated style, and sometimes remains there until the 

 fruit is considerably grown. 



Cowania Mexicana, D. Don in Linn. Trans. 14, p. 574, t. 22. C. Stausburyana, Torr. in 

 Stansb. Bep. p. 386, t. 3. In various parts of Sonora and western New Mexico, April— June. 

 My extensive series of specimens show that the two species here brought together are connected 

 by intermediate forms. 



Cowania ARiiEFOLiA, Torr. in Gray, PL Wright. 2, p. 107. Crevices of calcareous rock on 



fl 



(T 



AcxNA PixxATiFiDA, Buiz & Puv. FL Per. 1, p. 68, t. 104; Torr. d: Gray, FL p. 430. 



Monterey, California, April; Parry. 



Hoolc. & 



Dry sandy hills 



mountai 

 T— 8 feet high. 



and Monterey, May ; Parry, Thurher. A thick- 



Adexostoma sparsifolia, Torr. in Emory's Beport, p. 140. (Tab. XX.) Western slope of 



Parry. This species was first discovered by Major Emory 

 •'s Pass. Dr, Parry states, in his notes, that it is a shrub 



" " ^'^ " . ■- • 1 r^Y\Q bark is reddish, 



Wa 



Mai 



and peels off in shreds. The leaves are solitary and alternate, narrowly linear (nearly half an 



inch lone^ and half a Una Tt-;^.A t__ i . . i >- xi_ _ i. i-i i...\ „.:-.k „ • _-i. t t 



nds 



ide) sparsely dotted (as are the branchlets) 



Flowers in rather loose terminal panicles. Pedicels very short. Calyx turbinate- 



