6o6 HISTORY OF PASADENA. 



summit of Mount Lowe, besides several smaller ones that do not begin so 

 far back in the mountains. It will readily be seen that a region so diversi- 

 fied — a region made up of mountain, canyon, plain, and moist woodland — 

 must have a varied flora. In the woods and canyons algae, fungi, liver- 

 worts, mosses, ferns, and shade-loving seed-plants abound ; on the plain, 

 dwarfed shrubs, cacti, and other plants characteristic of an arid region ; on 

 the mountains, large shrubs, live-oaks, pines, spruces, cedars, and a great 

 variet}' of smaller plants. 



As an examination of the list will show, every month of the year brings 

 forth some new^ plants, and during every month some of the higher plants 

 are in bloom. The season of greatest growth is from January to June. It 

 is during this period that the most of the lichens, the higher fungi, the 

 liverworts, the mosses, the ferns, and the herbaceous seed-plants grow and 

 reproduce. During the remainder of the year parasitic fungi flourish, a 

 few mosses mature their spores, several Polygonacese, Euphorbiaceae, Cheno- 

 podiaceae, Compositse, and some members of other families of seed-plants 

 bloom and muture seeds. Algae are to be found at all seasons of the j^ear 

 w;here there is sufficient water. Tw^o beautiful species of Floridece grow in 

 abundance throughout the year in the Arroyo Seco, and a great variety of 

 brook-silk, green-felt, water-flannel, and other green algae is always to be 

 found there. The lover and student of plants can find an abundance of 

 specimens to enjoy and study at all seasons of the year. 



The plants of California, especially of the southern part, have not 3'et 

 been so carefully listed and described as in many of the eastern and 

 southern states. The literature accessible for their identification is still 

 meager. The Botany of the Geological Survey, the works of Professor 

 E. E. Greene of the State University, and some works descriptive of all the 

 plants of certain groups found in North America, are the more useful books. 

 The following are the principal works that list or describe plants of our 

 region : Sternberg's Manual of Bacteriology, Wolle's Fresh-water Algae, 

 Wolle's Desmidiaceae, Wolle's Diatomaceae, Pound's Mucoreae of N. A., 

 Ellis and Everhart's Pyrenomycetes, Tuckermann's Lichens, Saccardo's 

 Sylloge Fungorum, Kellerman & Ellis's Journal of Mycology, Morgan's 

 Gastromycetes, Farlow and Seymour's Host-Index, Harvey's Nereis 

 Borealis, Hervey's Sea-mosses, Halsted's Characeae of America, Allen's 

 Characeae of North America, Underwood's Hepaticae of North America, 

 Lesquereux and James's Mosses of N. A., Eaton's Ferns of N. A., Under- 

 wood's Our Native Ferns and Their Allies, Jones's Ferns of the Pacific 

 Coast, Vasey's Grasses of the Southwest, Bailey's Carices of N. A., 

 Morong's Naiadaceae of N. A., Watson's Liliaceae of N. A., Greene's Oaks 

 of the Pacific Coast, Wheelock's Polygala, Trealease's Rumex, Trealease's 

 Epilobium, Greene's Pittonia, Brewer. Watson and Gray's Botany of Cali- 

 fornia, Gray's Synoptical Flora of N. A., Rattan's Popular Flora, Parish's 

 Pknts of Southern California, Davidson's Plants of Los Angeles county. 



