302 Muhlenbergia, Volume 2 



LIN ACE AE Dnmort. Coiiini. Bot. 61. 1822. 



LiNUM CONGESTUM Gray, Proc. Am. Acad. 6: 521. 1865. 



No. 8572, collected May 28, in San Mateo county on the 

 slope overlooking Crystal Springs, on the Half Moon Bay road, 

 elevation 425 feet, growing in open places in gravelly and stony 

 ground, plentiful in a restricted area. The type locality is "Ma- 

 rin county, coll. H. N. Bolander." Both Greene and Jepson 

 mention it from Marin county only, so the species is probably 

 somewhat rare. 



EUPHORBIACEAE J. St. Hil. Expos. Fam. 276. 1805. 

 TiTHYMALUS CRENULATus (Engelm.) Heller 



No. 8443, collected April 20, in San Mateo county near 

 Lake Merced, elevation 100 feet, in sandy soil about clumps of 

 shrubs but not abundant, only a scattered plant here and there. 

 Easily recognized by the smooth capsule. f; ;- 



LIMNANTHACEAE Lindl. Nat. Syst. Ed. 2, 142. 1836. 

 LiMNANTHES DouGLASii R. Br. in Loud. & Edinb. Phil. Mag. 

 2: 70. 1833. 



Floerkea Douglasii Baill. Hist. 5: 20. 1874. 



No. 8538, collected May 9, in Hall's valley, Santa Clara 

 county, elevation 1500 feet, growing in wet places in rich black 

 soil, the plants large and spreading, the procumbent branches 

 nearly two feet long. The petals are yellowish in the lower 

 half, the upper half white veined with purple. Greene says 

 "petals yellow," and Jepson has it "yellowish, white, (or occa- 

 sionally roseate) at tip." 



ACEKACEAE J. St. Hil. Expos. Fam. 2: 15. 1805. 

 Acer macrophyllum Pursh, Fl. Am. Sept. 1; 267. 1814. 



No. 8431, collected April 6, on Guadalupe creek below the 

 Guadalupe mine, Santa Clara county, elevation about 500 feet. 

 Not infrequent in Santa Clara county, and when growing along 

 streams in open places it becomes a very large spreading tree. 

 Lewis collected the type "on the great rapids of the Columbia 

 River." 



