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1. J. Canirornica Carr.—Walnut Creek. 
Spring. 
Crass 2, CRYPTOGAMZ. 
Section 1. Dicnotom#® (Lycopodiacee). 
Ramification dichotomous. Each leaf produc- 
ing only one sporangium, borne on the upper 
surface of the leaf or near its axil. 
Family 1. SELAGINELLEZ. 
Macrosporangia and Microsporangia. Leaves 
small and of two different kinds. 
1. Selaginella Beauv. 
Sporangia axillary, globose, transversely de- 
hiscent.—2¢. Leaves 4-8-ranked. 
1. §. RUpEsTRIs.—Spring. Tamalpais. 
Family 2. ISOETEA. 
Heterosporous. All leaves long and grass- 
like. 
1. Isoetes L. Quitiwour. 
Characters of the family of which it is the only 
genus known. 
1. sp. Submerged aquatic.—Corte Madera. 
Found by Mrs. Curran, but not yet identified. 
2. sp. Growing on places inundated only 
during the rainy season.—Olema. 
Found by Mrs. Curran, but not yet identified. 
