112 ERYTHEA. 



Stanfordiana, on the contrary, are pink in color, about three lines 

 long, with the calyx only one-half the diameter of the corolla, and 

 with the base of the latter depressed about the edge of the calyx, 

 and more or less concealing it. The corolla possesses a slight con- 

 striction below the middle, although in some cases this structure is 

 not clearly evident. 



Abctostaphylos, abnormal form. A single shrub about 

 two feet high, near the highest point of the mountain ; leaves orbic- 

 ular, broader than long, subcordate at base, retuse at apex, and 

 densely crowded on the branchlets, in some cases appearing like 

 rosettes. 



25. Adenostegia Pringlei (Gray) Greene. Annual ; collected 

 in flower, the plants 10 to 18 inches high and nearly or quite leaf- 

 less ; stems and branches very rigid and brittle, of a reddish or 

 mahogany color. Although this is named with cei'tainty, the vege- 

 tative adaptation of the plants to the sun-scorched lava-flow lent to 

 these individuals so strange an aspect, that I took them to be of a 

 new species when first seen in the field. 



26. Eriodictyon Californicum Greene. 



27. Boschniakia strobilacea Gray. First summit, parasitic 

 on roots of Arctostaphylos manzanita. 



28. MoNARDELLA ODORATissiMA Benth. Indifferently typical. 



29. QuERCUS CHRYSOLEPis Licbm. In a shrubby form on the 

 various summits. 



30. QuERCUs WisLiZENii A. DC. Reduced and shrub-like. 



31. QuERCUs Kelloggii Newb. Within the limits only as a 

 shrub two or three feet high. 



32. QuERCUS DENSiFLORA H. & A. Barely within the limits. 



33. Castanea chrysophylla Dougl. 



34. Zygadenus Fremonti Torr. Plants past fruiting and 

 nearly gone. 



35. PsEUDOTSUGA TAXiFOLiA (Lambert) Britton. 



36. PiNUS ATTENUATA Lemmou. 



A considerable number of species was collected between 2,300 



