OCT.. 1899.] PLANTS. 159 



The form here referred to is the dwarf High Sierra one, given under 

 caspitosnm by Coville, in liis 'Botany of the Death Valley Expedition' 

 (p. 145, 1893). 



Vaccinium arbuscula ((xray) | = Vaccmium c(vspitosum var. arhiiscKla 

 (irayj. 

 Ooinniou in moist i)laces in tlie Transition zone from Wagon Camp 

 down to AVarmcastle Soda Springs at the south base of the mountain. 

 This species seems to be distinct from the dwarf boreal V. <(vspitosum. 

 It averages about 2 feet ((JO centimeters) in height and has red branches 

 and decidedly larger and thicker leaves than the alpine ca-spitosum. 

 Whether or not the latter is the typical form is another question. The 

 zone position of V. arhuscnla is probably Canadian and Transition. 



Vaccinium occidentale (iray. Blueberry. 



Common in the Canadian zone in some of the canyons, and in the 

 marsh at Wagon Camp, where it fruited early. 



Fraxinus oregana Nutt. Oregon Ash. 



Occurs sparingly in the upper Sacramento Canyon, but was not 

 observed about the actual base of the mountain. 



Gentiana simplex (rray. Blue Gentian. 



Common in the Canadian zone swamp at Wagon Camp the first half 

 of August. (Identified by Professor Greene.) 



Apocynum pumilum (Gray) Greene. 



Common in suitable places throughout the Transition zone, from 

 which it pushes up a short distance into the lower edge of the Cana- 

 dian. With other Transition zone species it was found on a warm 

 slope in Mud Creek Canyon at 6,700 feet. (Identified by Professor 

 Greene.) 



Cycladenia humilis Benth. 



Common in places it the Hudsonian zone, but very local. It occurs 

 plentifully on the top of Bed Cone, a short distance northeast of Wagon 

 Camp, at an elevation of about G,600 feet; on a red lapilli hill which 

 forms a part of Bed Butte, just east of ' The [South] Gate,' and on both 

 sides of ]\rud Creek Canyon a little below true timberline. The highest 

 altitude at which it was observed was 8,700 feet on a southwesterly slope 

 on the west side of Mud Creek Canyon. Cydudenia humilis is a curious 

 and rather striking plant. It usually has four large entire leaves, sug- 

 gesting those of Poh/ffonnm ueicberryi, and bears a pair of conspicuous 

 red tubular flowers followed by two curious seed pods, which are very 

 loug and lie side by side, one above the other, like the barrels of a Win- 

 chester rifle. (Identified by Miss Eastwood.) 



Gilia aggregata (Pursh) Spreng. 



Common throughout the ponderosa pine forests of the Transition zone 

 and sometimes seen in the lower part of the Shasta fir forest, where its 



