4 LESQUEUEUX CATALOGUE 



much like it, our species differing merely by more acute branch leaves and a broader 

 reticulation of the stem leaves differences of little importance. Therefore if S. 

 squarrulosum should be united to any species as a variety, it would rather go with 8. 

 rigidum. But it is better to let the species stand as it is till its fruit is known, and it 

 can be thus thoroughly studied. It is right to remark also that it was originally found 

 in the bogs of the Jura Mountains, of Switzerland, where 8. squarrosum has never 

 been seen. For this species more generally inhabits the bogs and streams of primitive 

 rocks, and not the limestone. 



5. S. su.bsecund.um, Nees & Hrnsch. 



Hab. wet meadows, Mariposa Big Trees, Bol. 

 Var. B. longifolium, ramis attenuatis longioribus, foliis angustis lanceolatis, 



elongatis. 



Hab. Mendocino City, swamps, Bol. 

 0. S. auriculatum, Schp. 



Hab. in swamps, 8,000 to 9.000 ft., between forks of King's River, Brew. In 



pools, near Mendocino, Bol. 



The form from Mendocino has a peculiar facies, which is not seen in any European 

 specimens. The leaves are longer and narrower, the branches more slender and at- 

 tenuated, similar to those of the floating large varieties of 8. cuspidatum. But it has 

 the lanceolate-pointed shape of the leaves, especially the loosely reticulated branch 

 leaves, and the stem leaves with fibrillose stems filled with very numerous round small 

 pores, a character ascribed by Schimper to this species only. The differences may be 

 considered as mere local variations. In the California moss the auricles of the stem 

 leaves are not more developed than they are generally in 8. subsecundum. 



7.. S. cymbifolium, Ehrh. 



Hab. swamps near Mendocino City, Bol. 



PHASCACEJE. 



EPHEMERUM, Hampe. 



8. E. serratum, Hampe. 



Hab. on the ground in fields and meadows, Mission Dolores, Bol. 



SPHJGRANGIUM, Schp. 



9. S. muticum, Schp. 



Hab. with the former, Bol. 



This species has not yet been found, to my knowledge, in the Atlantic States, 

 where it is represented by an intermediate form equally referable to both S. muticum 

 and S. triquctrum, Schp. It is S. triquetrum, var. No. 31, of the Musci Exsicc. Amcr., 

 Ed. 2d. 



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