124 Universitij of California Puhlirationfi. [botany 



Anisocoma acaulis Gray. 



Occasional in the lower part of the Transition Zone and 

 below. The long, prostrate peduncles spread out from the 

 rosette of leaves like the spokes of a weeel and bear on their 

 upturned tips the showy yellow heads, thus giving character to 

 the gravelly hill-sides on which they occur. When growing in 

 partial shade the peduncles are ascending or erect. (No. 1807.) 



Antennaria speciosa E. Xelson. Proc. U. 8. Nat. Mus. xxiii. 

 705 (1901). 



This rare and lieautiful plant forms large mats in the upper 

 end of Round Valley at 9200 ft. alt. and in the south end of 

 Tahquitz Valley at 8500 ft. alt.: it also grows in scattered 

 patches on Fullers Ridge and in Tahquitz Valley at altitudes of 

 6500-7200 ft. (Nos. 718, 2401.) 



Aplopappus interior Coville. Proc. Biol. Soc. Wash. vii. 65 

 (1892) and Contr. U. S. Nat. Herb. iv. 121 (1893) . ISfenotus 

 interior Greene, Eryth. ii. 72 (1894). 



Common along the borders of the Colorado Desert, reaching 

 our limits only along the edge of the chaparral belt of lower 

 Tahquitz Valley and among the rocks at Ken worthy. The plants 

 do not attain a height of more than about three feet in this 

 region. (No. 1140.) 



Aplopappus Palmeri Gnnj. 



This species was found at a few places in Onstatt and Hemet 

 valleys, below 5500 ft. alt. (No. 2232.5.) 



Artemisia dracunculoides Pnrsh. 



Occasional along streams \\\) to 8200 ft. alt. (No. 2622.) 



Artemisia heterophylla Xiiii. California Mugwort. 



This is another rather common weed of the streams but was 

 not found above 6000 ft. alt. (No. 2633.) 



Artemisia tridentata Xutt. Sage-brush. 



The true Sage-brush covers large areas in the Up])er Sonoran 

 Zone to the southeast of San Jacinto Mt.. and is also com- 

 mon beneath the Yellow Pines of the Transitfon Zone in Thomas 

 Vallev. 



