116 UNIVERSITY OF COLORADO STUDIES 
Between Stake 5 and Stake 6 the ground slopes more abruptly and 
here only 18 entries were made. ‘These entries are all for single plants, 
none representing patches or mats. Here is then a very sparse vegetation 
due to the steepness of slope and insecure footing. Following is the 
list : 
Distance from Distance from 
Stake 5 Name of Plant Stake 5 Name of Plant 
Ft. In. Ft In: 
Ons Grass ca - Sage 
Tey Harbouria Wile te Grass 
Yao) Potentilla if Sedum 
5 Pinus scopulorum 16. +3 Potentilla 
Sao Collinsia 6 Potentilla 
ums Eriogonum II Lithospermum 
tc ee 4 Sage ct Mame Lithospermum 
rari aa Grass 8 Grass 
Te fe Sedum roy atte Grass 
Between Stake g and Stake 10 the tape passed across a sedge-grass 
society, a close formation with nothing but sedges and grasses. The 
@ 9 0 WN 12 13 I 1] 16 19 20 2) 
PROFILE OF THE U-SHAPED GULCH DESCRIBED IN THE TEXT 
The vertical lines represent imaginary lines drawn from the stakes down to the level 
of the creek-bed where the numbers of the stakes are indicated. Distance between vertical 
lines is 20 feet. The same scale is used for both horizontal and vertical distances. Stake 
t is near the top of the slope at the west side of the gulch and Stake 21 is at the same 
altitude on the east. Box Elder Creek flows between Stakes 13 and 14. 
soil here was quite moist. Stakes 12 and 13 are both down in the floor 
of the gulch on level ground with good soil, quite moist. The formation 
is close with practically no bare ground. Large patches of grass occur 
as well as clumps of Senecio, Achillaea and Salix. The entries were 
made in the following order, distances being omitted here for sake of 
brevity: 
Grass and Achillaea patch, Plantain, Composite, Achillaea, Grass patch, Mimulus, 
Meadow grass, Achillaea, Mimulus, Senecio, Cow parsnip, Salix, Mertensia, Mertensia, 
Salix. 
