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 soli- 

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

 ous. 



I. Lycopodium. L. 



1. L. annotinum. L. Stiif 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 Christinas Green. 



V. SELAGINELLACEiE. 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 I. GYMNOSPERM^ 

 ORDER IV. CONIFERALES 

 VI. TAXACE^. YEW FAMILY 



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

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



