122 I. M. JOHNSTON 



Senecio Douglasii DC. Lower edge of the pine belt at 5000 ft. alt. in Prairie Fork. 

 (No. 1678.) 



Cirsium Calif ornicum Gray var. bernardinum (Greene) Macbride. Occasional on 

 the dry sandy floor of Prairie Fork in the Lower Transition Zone. Ascending 

 to 7000 ft. alt. (No. 1707.) 



Anisocoma acaulis Gray. A single plant under the pines, alt. 8000 ft. in the Upper 

 Transition Zone on the divide at the head of San Antonio Canon. This is 

 perhaps the same station where Dr. Hall (No. 1265) collected the plants 

 which grew on an "open ridge at 8000 ft. alt." (No. 2081.) 



Stephanomeria runcinata Nutt. Occasional in rocky ground in the lower and 

 dryer parts of the Transition Zone. Frequent at lower levels. (Nos. 1573, 

 1649.) 



Stephanomeria cichoriacea Gray. Frequent in dry rocky ground in the chaparral 

 belt and in the Lower Transition Zone. Seen in the Upper Transition Zone 

 at 8000 ft. alt. 



Stephanomeria virgata Benth. A low, very slender form of this species was com- 

 mon under the pines in the Upper Transition Zone near the head of Prairie 

 Fork. (No. 1654.) 



Troximon retrorsum (Benth.) Greene. Frequent in open ground in the Upper 

 Chaparral belt and in the Transition Zone. On Pine Mountain Ridge a col- 

 ony was noted at nearly 9000 ft. alt. (No. 2089.) 



Crepis nana Richards. "On the eastern side of Mt. San Antonio some three or 

 four hundred feet below the summit, near a small snow field, along the Glen 

 Ranch Trail," ace. Burlew (Bull. So. Cal. Acad. 16: 13, 1917). 



Crepis acuminata Nutt. Frequent in Prairie Fork and on the ridges surrounding 

 it. Growing in dry rocky ground in the Transition and lower parts of the 

 Canadian Zone. 6000-8500 ft. alt. (Nos. 1650, 2083.) 



Hieracium albiflorum Hook. Frequent under the pines; most common in the 

 Lower Transition Zone. (Nos. 1480, 1614.) 



Hieracium horridum Fries. In rocky ground in the Lower Transition Zone, alt. 

 6000 ft., in Middle Fork Lytle Creek. In the Upper Transition Zone at 7000 

 ft. alt. in Icehouse Canon and in Cascade Fork San Antonio Canon. Very 

 common among the rocks, at the upper edge of the Transition Zone, on the 

 summit of Ontario Peak, alt. 8200 ft. (Nos. 1613, 1616.) 



