17f. PARNASSIACEAE. 



1. PHILADELPHUS L. Syrixga, Mock Orangeg. 



Hypanthiuiii 4-5 nini. Ioiik ; sepals acuminate ; leaves much paler beneath ; styles 

 united. i. /'. microphyllus. 



Hypanthiura about 2 mm. long or in fruit 3-4 mm. long; sepals acute. 

 Styles wholly or nearly wholly united ; stigmas usually oblong. 



2. P. occtdeiitalts. 

 Styles with the upper half distinct ; stigmas decidedly clavate. 



3. P. minutus. 



1. Philadelphus microphyllus A. Gray. Mountains of N. M. and Colo. — 

 Brantly Canon; Canon City (Braiidegec), "Colorado." 



2. Philadelphus occidentalis A. Nels. Mountains from Wyo. to Colo, and 

 Utah. — Alt. 5000-7000 ft. — Cai'ion City; Glenwood Springs (A. Nelson). 



3. Philadelphus minutus Rydb. Canons of Colo.— Alt. 7000 ft. — Black 

 Cation of the Gunnison. 



2. EDWINIA Heller. 



I. Edwinia americana (T. & G.) Heller. {Jamcsia americana T. & G.) 

 On cliffs, mountain sides and in cafions, from Wyo. and Utah to N. M. — 

 Alt. 5000-10,000 ft. — Rist Canon ; Minnehaha ; Pike's Peak ; Rock Mountain 

 Pass ; Ward ; West Spanish Peak ; Central City ; Engelmann's Caiion ; North 

 Cheyenne Canon; Green Mountain Falls; foot-hills, Larimer Co.; George- 

 town; Canon City; headwaters of Clear Creek and alpine ridges east of Mid- 

 dle Park; Manitou ; Graymont ; Narrows, Moon's ranch; Horsetooth Gulch; 

 Soldier Canon ; Howe's Gulch ; Pennock's mountain ranch ; mountains be- 

 tween Sunshine and Ward ; Eldora to Baltimore. 



3. FENDLERA Engelm. & Gray. 



I. Fendlera rupicola Engelm. & Gray. On hills from Colo, to N. M. and 

 Ariz. ; also in Alex. — Alt. 5000-8000 ft. — Durango ; Mancos ; Cerro Summit ; 

 Los Pinos; Hotchkiss, Delta Co.; Dolores. 



Family 65. GROSSULARIACEAE. Gooseberry Family. 

 I. RIBES L. GoosE-BERRv, Currant. 



Leaves plicate in vernation. 



Stems usually with subaxillary spines. 



Racemes 1-4-flowered ; hypanthium campanulate to tubular. 



Calyx and tube of hypanthium externally glabrous or the former with a few 

 scattered hairs. 

 Peduncles and bracts more or less glandular or pubescent ; leaves finely 



puberulent. i. R. Purpusi. 



Peduncles and bracts glabrous or the latter ciliate ; leaf-blades cordate 

 at the base, in age glabrose and shining. 2. R. vallicola. 



Calyx and hypanthium pubescent. 3. R. leptanthuni. 



Racemes several-flowered ; hypanthium saucer-shaped. 



Leaves densely pubescent ; fruit red. 4. R. lentuni. 



Leaves glabrate ; fruit black. 5. R. parvuluvx. 



Stem unarmed ; raceme many-flowered. 



