1921] Smiley: Flora of the Sierra Nevada of California 



63 



(a) 5 families have more than 20 species: 



(1) Cruciferae, 11 genera, 26 species. 



(2) Polygonaceae, 4 genera, 25 species. 



(3) Saxifragaceae, 9 genera, 24 species. 



(4) Leguminosae, 4 genera, 23 species. 



(5) Liliaceae, 13 genera, 21 species. 

 (&) 9 families have from 10 to 19 species inclusive: 



(1) Ranunculaceae, 10 genera, 19 species. 



(2) Ericaceae, 



(3) Umbelliferae, 



(4) Caryophyllaceae, 



(5) Hydrophyllaceae, 



(6) Polemoniaceae, 



(7) Juncaceae, 



(8) Salicaceae, 



(9) Onagraceae, 



(c) 6 families have from 5 to 9 species inclusive: 

 (1) Borraginaceae, 5 genera, 9 species. 



12 genera, 17 species. 



12 genera, 16 species. 



5 genera, 14 species. 



5 genera, 14 species. 



3 genera, 13 species. 

 2 genera, 13 species. 

 2 genera, 11 species. 



4 genera, 11 species. 



(2) Gentianaceae, 



(3) Portulacaceae, 



(4) Caprifoliaceae, 



(5) Primulaceae, 



(6) Orchidaceae, 



4 genera, 9 species. 

 4 genera, 8 species. 

 3 genera, 

 3 genera, 



7 species. 



5 species. 



3 genera, 5 species. 

 (d) The remaining 26 families have 4 or fewer species, those starred being 

 represented by a single species: Sparganiaceae, Najadaceae, *Junca- 

 ginaceae, Iridaceae, Betulaceae, Fagaceae, Loranthaceae, *Nymphe- 

 aceae, Fumariaceae, Droseraceae, Crassulaceae, *Geraniaceae, *Linaceae, 

 *Callitrichaceae, *Aceraceae, Rhamnaceae, Malvaceae, *JHypericaceae, 

 Viol-aceae, *Halorrhagidaceae, *Cornaceae, Apocynaceae, Labiatae, Eubi- 

 aceae, *Lentibulariaceae, *Valerianaoeae. 



The relative importance of the several genera of angiosperms whose 

 species make up the greater part of the vegetation of the high Sierra, 

 is unequal. The genera with large representation are comparatively 

 few and may be ranked as follows on the basis of the number of their 

 species : 



Saxifraga 



Eibes 



Ivesia 



Phacelia 



Aster 



Arnica 



Allium 

 Draba 



Astragalus 

 Artemisia 



Agrostis 



Poa 



Scirpus 



Gentiana 



Haplopappus 



7 species 



6 species 



5 species 



