1921] Smiley: Flora of the Sierra Nevada of Calif orma 



63 



(a) 5 families have more than 20 species: 



( 1 ) Crucif erae, 



(2) Polygonaceae, 



(3) Saxifragaceae, 



(4) Legum.inosae, 



(5) Liliaceae, 



11 genera, 26 species. 



4 genera, 25 species. 



9 genera, 24 species. 



4 genera, 23 species. 



13 genera, 21 species. 



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



(1) Ranunculaceae, 10 genera, 19 species. 



(2) Ericaceae, 



(3) Umbelliferae, 



(4) Caryophyllaceae, 



(5) Hydrophyllaeeae, 



(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, 7 species. 



3 genera, 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, Lorantluiceae, *Nymphe- 

 aceac, Fumariaceae, Droseraceae, Crassulaceae, *Geraniaoeae, *Linaceae, 

 *CaUitrichaceae, *Aceraceae, Bhamnaceae, Malvaceae, *nypericaeeae, 

 Violaccae, * Halorrliagidaceae, *Cornnceae, Apocynaceae, Labiatae, Bubi- 

 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 : 



Carex, 



Eriogonum 



Potentilla 



Mimulus 



Erigeron 



Lupinus 



Juncus 



Salix 



Polygonum 



Pentstemon 



Senecio 



Arabis 



Epilobium 



Gilia 



Castilleja 



44 species 



13 species 



12 species 



9 species 



8 species 



Saxifraga 



Ribes 



Ivesia 



Phacelia 



Aster 



Arnica 



Allium 

 Draba 



Astragalus 

 Artemisia 



Agrostis 



Poa 



Scirpus 



Gentiana 



Haplopappus 



7 species 



6 species 



5 species 



