INDICATOR SIGNIFICANCE OF NATIVE VEGETATION 



283 



TABLE 3— Continued 



Nyctaginaceae 



Allionia divaricata Rydb ■ . . . . 



PORTULACACEAE 



Portulaca oleracea L 



SiLENACEAE. 



Arenaria confusa Rydb 



Cerastium lojigipedunculatuni Muhl. . 



Silene laciniata Cav 



Silene pringlei S. Wats 



Ranunculaceae 



Aquilegia chrysantha A. Gray 



Thulictrum imghtii A. Gray 



Brassicaceae 



Draba heUeriana Greene 



Erysimum, elatum. Nutt 



Heterolhrix lungifolia (Benth.) Rydb 

 Rosaceae 



Cercocarpus hreviflorus A. Gray 



Fragaria bracteata Heller 



Potentilla ati'orubens Rydb 



Potentilla crinita A. Gray 



Rosa fendleri Crep 



Fabaceae 



Anisolotus wi-ightii (A. Gray) Rydb., 



A ragallus lambertii Greene 



Astragalus accvmbens Sheld 



Lathyrus graminifolius (S. Wats.) 

 White 



Phaseolus angustissirmis A. Graj' . . . . 



Vicia americana Muhl 



Oxalidaceae 



Oxalis stricta L 



Geraniaceae 



Geranium fremontii Torr 



Geranium richardsonii Fi^ch. & 



Trautv 



Linaceae 



Linum 7ieomexicanum Greene 



Euphorbiaceae 



Euphorbia fendleri Torr. & Graj^ 



PER CENT OF QUADRATS ON WHICH SPECIES OCCUR 



Canon 

 bottom 



(12 

 quad- 

 rats) 



17 

 8 

 

 



8 

 





 8 

 







8 



33 



8 

 8 



17 







17 







25 















North 



slope 



(13 



quad- 

 rats) 











31 







23 





 31 



8 

 

 







31 











38 



8 

 23 

 38 



62 



8 



38 



8 

 8 



8 



Total 



site I 



(25 



quad- 

 rats) 







24 

 4 



12 

 4 



4 

 16 



4 

 4 

 







20 



4 



4 



36 



8 

 16 

 24 



40 

 4 



28 



4 

 16 

 4 

 4 

 4 



South 

 slope 



(23 

 quad- 

 rats) 



13 





 

 

 9 





 







4 



17 



9 

 4 

 

 

 



26 







30 



35 







26 







4 















Ridge 

 top 



(5 

 quad- 

 rats) 





 















20 





 





 

 





 

 

 

 



60 



20. 



80 



CO 

 

 























Total 

 site II 



(28 

 quad- 

 rats) 



11 





 

 



11 





 







4 



14 



7 

 4 

 

 

 



32 



4 



39 



39 







21 







4 















THE PLANT WORLD, VOL. 20, XO. 9 



