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Jepson Field Book volume 28_62 | University and Jepson Herbaria Archives, University of California, Berkeley

Jepson Field Book volume 28_62
Mt. Tamalpais, 14 Feb. 1914. densely hairy in a tuft at top of the abruptly dilated or globose base. No. 5726. Corylus cornuta var. californica Fasciated up to catkin. -Arctostaphylos (glandulosa Eastw. not A. -no. 5722-)manzanita. Its slender stems form a dense thicket. When burned the surface litter is also more or less consumed. When rains follow there is free erosion. As a result the root crowns by mid-winter are exposed and show as described on p. 60. The term "A. manzanita" as used for Mt. Tamalpais and Moraga Ridge of preceding pages rests on no. 5722 and other sms [specimens] recently coll. [collected] and so labeled.  ::::::::: Mt. Tamalpais, 21 Feb. 1914 Arctostaphylos nummularia. Shallow rooting system, tap roots small and not deeply seated. It was no trouble with my botanical pick to uproot a shrub 5 ft. [feet] high! -Ceanothus thyrsiflorus Matthews, w.b., refers to its shallow rooting system that its stems can be pushed over, where they grow tall in the Mendocino forests, and that the stems are always more or less leaning in a state of nature. -Pickeringia montana, a cut in the railroad exposed about 5 ft. [feet] of the taproot.  The upper portions for about one foot with the
University and Jepson Herbaria Archives, University of California, Berkeley
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