General Key to the Families 



ORDER III. LYCOPODIALES 

 IV. LYCOPODIACE^:. CLUB MOSS FAMILY 



Low-growing moss-like plants with branching, trailing or erect 

 stems; leaves small, lanceolate, persistent, entire; sporangia soU- 

 tary in the axils of the leaves, or on their upper surface. Isopor- 

 ous. 



I. LYCOPODIUM. L. 



1. L. annotinum. L. Stiff Club Moss. 



2. L. clavatum. L. Creeping Club Moss. 



3. L. Selago. L. Fir Club Moss. 



4. L. alpinum. L. Alpine Club Moss. 



5. L. sitchense. Rupr. Arctic Club Moss. 



6. L. complanatum. L. Trailing Christmas Green. 



V. SELAGINELLACE^:. SELAGINELLA FAMILY 



Small, leafy terrestial plants with branching stems ; leaves scale- 

 like, many-ranked, uniform; sporangia one-celled, solitary, axillary 

 or borne at the base of the upper surface of the leaf. Heteros- 

 porous. 



I. SELAGINELLA. Beauv. 



1. S. selaginoides. (L.) Link. Small Selaginella. 



2. S. rupestris. (L.) Spring. Rock Selaginella. 



DIVISION II. SPERMATOPHYTA 



(SEED-PLANTS, PHANEROGMIA, OR FLOWERING PLANTS) 



Flowers with stamens, or pistils, or both. Normal reproduction by 

 seeds containing an embryo or minute plant. 



SUBDIVISION L GYMNOSPER1VLE 

 ORDER IV. CONIFERALES 

 VI. TAXACE.E. YEW FAMILY 



Trees or shrubs; sparingly resinous; leaves evergreen or de- 

 ciduous, linear, spreading in two ranks ; flowers dioecious, or rarely 



