116 . I. M. JOHNSTON 



is exceedingly abundant under the pines in the vicinity of Kellys Cabin, 

 8000-8500 ft. alt., where it colors the ground in the openings between the 

 manzanita and chinquapin bushes. 



C. monticola was based on collections made by Dr. Hall at 6800 ft. alt. in 

 Swartout Valley. This species, however, is an exact duplicate of Sierran 

 C. Wrighlii. The only character which distinguishes Wrightii from C. Torreyi 

 is its smaller sized corolla. This character, while apparently constant, is, 

 in our mind, not sufficient to warrant the separation of these two very closely 

 related forms. (No. 1551.) 



Mimulus glutinosus (Nutt.) Wendl. var. brachypus Gray. Occasional in dry, 

 sunny, rocky places along the lower edge of the pine belt. A large colony was 

 found on a dry sunny slope at 7500 ft. alt. in the lower part of the Upper 

 Transition Zone in North Fork San. Antonio Canon. (No. 1607.) 



Mimulus Palmeri Gray. Collected by Dr. Hall. (No. 1449.) at 5800 ft. alt. in 

 Lytle Creek Canon. 



Mimulus Fremontii. Lytle Creek Canon, alt. 6000 ft. Hall 1543. 



Mimulus sp. A small red Mimulus (Eunanus) is common in dry ground under 

 the pines. It extends from the lower edge of the pine belt up to 9700 ft. alt. 

 in the Canadian Zone on Little Baldy. 



Its nearest relative appears to be M. Fremontii but it has smaller flowers 

 and has a single, erect, pubescent much coarser stem which is evenly branched 

 from base to summit and not restricted to basal branching as is the more 

 slender stemmed Fremontii. Its calyx is less distinctly angled, apparently 

 shorter and much less constricted at its mouth. The leaves are much more 

 numerous, thicker, broader and decidedly pubescent. (Nos. 1486, 1524.) 



Mimulus floribundus Dougl. Frequent in moist ground. Seen at 7000 ft. alt. in 

 Coldwater Fork Lytle Creek. 



Mimulus rubellus Gray. A few plants in moist ground at 6500 ft. alt. in Middle 

 Fork Lytle Creek. Specimens too poor for positive determination. Plenti- 

 ful collections of this species were made, however, by Dr. Hall (No. 1458) 

 at 6000 ft. alt. in "Lytle Creek Canon." (No. 1618.) 



Mimulus microphyllus Benth. A small depauperate form of apparently this 

 species is quite common in the springy ground at the Old Gold Ridge Mine, 

 Upper Transition, alt. 8000 ft. (No. 1599.) 



Mimulus cardinalis Dougl. Common in moist ground throughout the Transition 

 Zone. (No. 1524.) 



Pentstemon labrosus Hook. Common under the pines in the Transition Zone. 

 (Nos. 1460, 1461, 1557.) 



Pentstemon Palmeri Gray. Frequent under the pines in the Transition Zone. 

 Seen in the Canadian Zone, alt. 9000 ft. on the Devils Backbone. It extends 

 some distance down into the Upper Chaparral Belt where it is common at 

 3500 ft. alt. on Hog Back. (No. 1526.) 



Pentstemon ternalus Torr. Most common in the Upper Chaparral Belt, but not 

 uncommon in the lower part of the pine belt. (No. 1676.) 



Pentstemon centranthifolius Benth. Common on the broad sandy floor of Prairie 

 Fork, ascending the canon to over 6000 ft. alt. 



Castilleja miniata Dougl. Springy ground in the Upper Transition Zone. 

 Not uncommon on the north side of the mountain, but on the south slope it 



