. An account of the mammals and birds of the lower Colorado Valley : with especial reference to the distributional problems presented . PLATE 5 Fig. 4. Looking north over the flood plain of the Chemehuevis Valley,California side. At this date (March 10, 1910) only the cottonwoods had comeinto leaf. This is the tTi-pical willow-cottonwood association of the riparianbelt as found in all the broad valleys. The component plants are willows, oftwo species, cottonwood, guateniote, and screw bean. Some of the latter showin the foreground because of the mistletoe clumps in their as yet leaflessbranche
. An account of the mammals and birds of the lower Colorado Valley : with especial reference to the distributional problems presented . PLATE 5 Fig. 4. Looking north over the flood plain of the Chemehuevis Valley,California side. At this date (March 10, 1910) only the cottonwoods had comeinto leaf. This is the tTi-pical willow-cottonwood association of the riparianbelt as found in all the broad valleys. The component plants are willows, oftwo species, cottonwood, guateniote, and screw bean. Some of the latter showin the foreground because of the mistletoe clumps in their as yet leaflessbranches. At the time of taking this picture birds of the winter visitantcategory were plentiful (see text, p. 71). Fig. 5. The arrow-weed association, the typical element in which is thearrow-weed (Pluchea sericea). This plant forms an almost continuous growthover the river flood plain outwardly adjacent to the willow-cottonwood asso-ciation. Animal life was poorly represented in this association as comparedwith any other of the region. Those birds and mammals found thereinappeared nearly all to traverse it only incidentally, in passin
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, booksubjectmam
