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Jepson Field Book volume 27 page 186 | University and Jepson Herbaria Archives, University of California, Berkeley

 
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Jepson Field Book volume 27 page 186
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Berkeley ----------  - Prunus in the Berkeley and Oakland Hills. Under my direction H.H. Haworth Bot. 104 has listed locs. for two species:    P. emarginata: cool canons of the Berkeley Hills, 500 ft. elev. where there is plenty of moisture; stream bank Strawberry Canon, well developed; Shepherd's Canon south wall; Glory Hole Canon; Redwood Peak.    [In Telegraph Canon occurs in thickets on shoulders low down south side, half way up.]    P. demissa: north end of Palo Colorado ridge, almost on top and over-looking the Snake Road where it starts down into San Leandro Canon above the O.A. & E. tunnel. It is a northeast slope and rather dry. The thicket begins about ::::::::: 1917. -----  the top of the ridge and extends some distance down the slope. The larger individuals are in the damper places lower on the slope. - Dirca occidentalis. Average height = 6 ft., max. of 10 ft. in Glory Hole Canon (3 1/2 in. diam. trunk at base). Restricted and localized distribution: n. slopes cool & well-watered canons  Occurs in dense thickets of its own, or an individual here and there in other thickets, but always on n. slope of a canon. As a rule direct light not intense.    Strawberry Canon, scattered individuals    Shepherd's Canon,      "                "    Ridges about O.A. & E. tunnel.    Redwood Peak, thicket on n.e. side.    Glory Hole, individuals and small thickets.    -- H.H. Haworth
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University and Jepson Herbaria Archives, University of California, Berkeley
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