DEN 11.

April 9, 1919.  In partially denuded land where good spring growth of Eschscholtzia was in bloom at time of excavation.  Stomach of spectabilis killed in this burrow contained a mass of fresh but finely comminuted green material, probably poppy leaves, strongly colored with yellow from blossoms.  No summer growth here in 1918.

Species stored.  Grams.

Bouteloua rothrockii (crowns) (miscellaneous chaff, etc.) 107
Eschscholtzia mexicana (buds and flowers) }
Anisolotus trispermus (leaves and pods) }
Gaertneria tenuifolia (leaves) } 10
Lupinus sparsiflorus (flowers) }
Solanum elaeagnifolium (2 fruits) Tr.
          
                                                     —–­
      Total 117

Six species represented, some only by leaves or flowers and not by seeds. Such storage is never in large quantity. The fresh storage material was weighed after becoming air dry.  This illustrates a late spring condition, storage running low.

DEN 14.

August 8, 1919.  Excellent summer growth all over range.  This burrow in mixed growth, grasses and weeds.

        Species stored.  Grams.

Miscellaneous portions of green plants of mixed species,
  no seeds 5

Representing minimum for any one of the 22 burrows studied.  Active storage does not begin until September.

DEN 16.

October 17, 1919.  In good grass, but mound overrun by a large Apodanthera vine.

Species stored.  Per cent.  Grams.

Aristida divaricata 90 to 95 }
Chamaecrista leptadenia 10 to 5 } 58
Bouteloua rothrockii Tr. }
Prosopis velutina 200
Apodanthera undulata 55
          
                                                     —–­
      Total 313

Five species represented.  Two species, Apodanthera, and Chamaecrista leptadenia, new to storage records.  Several whole fruits of Apodanthera, about 2 inches in diameter, stored in addition to seeds alone; seeds of this form not previously noted in burrows, but very abundant in this one, indicating importance of the factor of accessibility in storage.