114 I. M. JOHNSTON 



plete gradation exists between the extremely large and extremely small 

 flowered plants we have thought it best to treat this plant as a "form." 



Phacelia Fremontii Torr. P. Hallii Brand. Collected by Dr. Hall as high as 

 7000 ft. alt. on the north side of the mountain. 



The type of P. Hallii came from 6700 ft. alt. on the north side of the 

 mountain. The slightly smaller flowers are the only difference that I can 

 detect between specimens of the type collection (Hall 1264) and other col- 

 lections from Swartout Valley (Hall 1494) that Brand has passed as P. 

 Fremontii. I have also seen a collection referable to P. Hallii from 7000 

 ft. alt. (Hall 291). 



Eriodictyon trichocalyx Heller. Dry sunny open slopes up to an altitude of 9000 

 ft. Usually associated with Rhamnus californicus. (No. 1574.) 



Turricula Parryi (Gray) Macbr. A few scattered colonies were found in sunny 

 rocky ground in the Transition Zone. On the south side of the mountain it 

 is more common and reaches greater size in the Upper Chaparral Belt. (No. 

 1564.) 



BORAGINACE^E 



Cryptantha ambigua (Gray) Greene. Frequent in dry, sunny ground throughout 

 the Transition Zone, alt. 5000-8200 ft. Det. by Mr. J. F. Macbride. (Nos. 

 1620, 2035, 2057, 2071.) 



Cryptantha muricata (H. & A.) Nels. & Macbr. Frequent in dry ground, mainly 

 in the Transition Zone. A reduced form with stems averaging under 6 mm. 

 high was found on Telegraph Peak Summit, alt. 9000 ft. (Nos. 1542, 1598.) 



Cryptantha muricata (H. & A.) Nels. & Macbr. var. Jonesii (Gray) Johnston, 

 comb. nov. Krynitzkia Jonesii Gray. Most abundant in the chaparral belt 

 but occasionally found under the pines in the Lower Transition Zone. 



In its typical form this plant is separated from the last by its somewhat 

 larger flowers and strict habit of growth. Numerous intermediate stages 

 exist between these two extremes and so we have assigned Jonesii to varietal 

 rank. (Nos. 2073, 2077.) 



VERBENACEjE 



Verbena prostrata R. Br. Frequent in dry sunny ground in the Lower Transition 

 Zone. Locally abundant in springy ground, 8000 ft. alt. in the Upper 

 Transition Zone at the Old Gold Ridge Mine. (Nos. 1407, 1608.) 



LABIATAE 



Pycnanthemum califomicimi Torr. Moist ground in the lower part of the pine 



belt; common in the chaparral belt. (No. 1715.) 

 Monardella cinerea Abrams. Known only from the San Antonio Mountains, 



where it is found in scattered stations in the Canadian and Transition Zones, 



invariably growing in rocky situations. A ledge of rock, well shattered by 



the elements, is its favorite location. 

 The type station is "near the summit of Mt. San Antonio." The plant is 



most abundant on the very rocky, gentle south slope of Little Baldy, Cana- 



