44 



BULLETIN 1105, U. S, DEPARTMENT OP AGRICULTURE. 



Table 12. — Detailed record of seedling plots within sample plots 3A and SB. 



[Bl= Blepharoneuron tricholepis, C= Ceanothus fendleri, Chen= Chenopodium sp., Cir= Cirsium sp., 

 Er= Erigeron (small), F= Festuca arizonica, Lot= Lotus wrightii, Lup= Lvpinushillii, M= Muhlenber- 

 gia montana, Ox=Oxytropis (spreading), Pol= Polygonum douglasii, Sen=Senecio spartioides, Sit— 

 Sitanionsp., Vic.= Vicia amcricana. 



Order of symbols indicates relative abundance on each plot. 

 0.6= Density of cover, considering complete cover as 1. 



In Sun, Distance 25 Feet or Less From Seed Trees. 





Vegetation (1919). 



Number of seedlings per 5 by 10 foot plot. 



Plot 

 No. 



Natural plots. 



Cultivated plots. 



Sept., 1919. 



May, 1920. 



Aug., 1920. 



Nov., 1920. 





Nat- 

 ural. 



Culti- 

 vat- 

 ed. 



Nat- 

 ural. 



Culti- 

 vat- 

 ed. 



Nat- 

 ural. 



Culti- 

 vat- 

 ed. 



Nat- 

 ural. 



Culti- 

 vat- 

 ed. 



A2 



0.6, Vic, Lup, M.F. . 

 1.0, F, Vic, Lup, M.. 

 0.9, F, Lot, M,B1.... 

 0.8, F,M, Vic, Lup... 



0.9, M, Bl, Lot 



1.0, F, M,Vic 



0.8, Vic, F, Lot, M... 

 0.7, M. F, Vic, Lot... 



0.2, M, E, Lup - 



185 

 102 



80 

 235 

 141 



60 

 133 



43 



138 

 66 

 14 



150 

 47 

 31 



100 

 22 



89 

 43 

 45 

 121 

 113 

 25 

 72 

 28 



51 



23 



11 



113 



31 

 14 

 83 

 21 



51 

 6 

 23 

 17 

 18 

 

 18 

 13 



18 

 8 

 10 

 29 

 12 

 8 

 17 

 19 



34 

 6 

 23 

 17 

 18 

 

 5 

 9 



8 



3 

 4 

 10 

 Bl 

 2 



0.7, Lup,Vic,M,Er. 

 0.3, Lup, Lot, M, Bl. 

 0.2, Lup, Vic, Lot, M 

 0.2, Lup, Lot, Vic... 

 0.8, M, Lup, Sen 





8 

 8 

 23 

 9 



7 



4 

 10 



0.6, Vic, Bl, M, Pol.. 

 0.1, Ox, Lot, Er, Cir 





13 

 15 





In Sun, Distance Over 25 Feet From Seed Trees. 



i Al 



F, Er, C 



M, F, Bl, Sit 



Lup, Sit, M, Vic. . 

 F,B1, M, Lup.... 

 F, Bl, M, Vic... 

 F. V.M, Lup.... 

 M, F, Lot, Lup.. 

 Vic, M, F, BL... 



0.2, M, Chen, Er 



1.0, Bl, Sit, M. F 



1.0, Vic, Lup, Er. Cir 

 0.6, M. Bl. Lup, Er.... 

 0.8, Bl, Vic, M. Lup... 



0.7, M, Bl, Vic, Er 



0.3, Lot, Lup, M, Vic. 

 0.5, E, M, Bl, Sit 



36 



8 

 21 

 36 

 34 



21 

 41 



10 



In Shade One-half or More of Day, all 25 Feet or Less from Seed Trees. 



Vic, Lup, Lot, M 

 C, Lup, F, M.... 

 Vic, F, M, Lup.. 

 M, Bl, Sit, Ar. . . 



0.7, Lup, Lot, M 



0.3, Lup, Lot, Vic, F.. 

 0.5, Vic, Lup, Lot, Sit. 

 0.3, Lot, Ox, M, Bl ... 



192 



422 



55 



130 



18 



77 



15 



260 



434 



101 



200 



59 



135 



53 



147 



322 



61 



160 



14 



52 



13 



286 



331 



168 



178 



40 



34 



31 



65 

 117 

 51 

 30 



* Burned brush pile on west two-thirds. 



