184 ERYTHEA. 



blades of N. gigantea must arise, after the first division, by 

 unequal longitudinal splitting and, consequently, this species 

 seems to belong rather to the subtribe Macrocysteae. Speci- 

 mens of the earlier stages of development are needed, how- 

 ever, for ascertaining the exact details. 



No fruit was found by the writer upon any of the speci- 

 mens examined, and they seemed not to have reached by 

 any means their full development. 



Plate VII. Nereocystis gigantea Aresch., from a photograph 

 of a specimen collected in 12 fathoms of water near San 

 Pedro, California. 



NOTES ON THE FLORA OF HUMBOLDT, TRINITY 

 AND SHASTA COUNTIES. 



By W. C. Blasdale. 



During the first three weeks of the month of June of the 

 present year, it was my good fortune, in company with Mr. 

 M. A. Howe, to make an extended collecting trip across the 

 central portions of Humboldt, Trinity and Shasta Counties. 

 Though such a rapid survey of the country was necessarily a 

 a very incomplete one, it has seemed advisable to place on 

 record some few notes on the flora of this little-known region. 



Starting from Eureka, our route lay up the valley of the 

 Mad River for a distance of forty-five miles, thence across 

 Pilot Ridge and South Fork Mountain to the South Fork of 

 the Trinity River at the little hamlet of Hyampum. Thus 

 far it corresponded with that pursued by Drew and Chesnut 

 in 1888 at a considerably later season of the year (see 

 Botanical Gazette XVI, 147.) Following up the Hay Fork 

 of the Trinity to its source, we next traversed the intricate 

 plexus of low mountain ranges that makeup the western part 

 of Trinity County, passing through Douglass City, Dead- 

 wood City, thence over the divide into Shasta County, and 

 finally to the town of Redding by way of the stage-road. 



