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Jepson Field Book Transcriptions · Jepson Herbarium
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15_154 Konigliches Bot. Mus. Berlin F. Pax, Aceraceae, Pflanzenreich. Acer. divided into 13 sections W. Am. = A. Fls. app. with leaves or slightly earlier. disk well-developed; interior bud scales elongating. a. Sepals free; petals evolute. Sect. I. Spicata. A. macrophyllum. Sect II. Palmata. A. circinatum. Sect VII. Glabra. A. glabrum. b. Sepals connate; petals none. Sect. XIII. Saccharina. A. grandidentatum Nutt. B. Fls. appearing long before the leaves; disk much reduced; inner bud scales not elongating. Sect. VII. Negundo. A. Californicum. Dietr ---------- = A. macrophyllum Pursh. var. imbricatum OK. Wings erect, |
15_155 April 2, 1906 partly imbricated. = A. circinatum Pursh. Wings horizontal. = A. Californicum Dietr. (Neg. Calif. T. & G.) Pax separates this from A. Negundo as follows: A. Negundo, adult leaves below glabrous or pilose; young branches most often glabrous, pruinose; style hidden. A. Californicum, adult leaves densely pubescent below; young branches pubescent (densely cinerous); style not parted wholly to the base. (Test out above; I am skeptical.) = A. grandidentatum. Rocky Mts. Does it come into Oregon? Sargent refers it as a var. of barbatum, Sudworth of saccharum. = A. glabrum Torr. Two vars: var. monophyllum Graf um [?] Schwerin, which is the var. typicum. and var. tripartitum (Nutt.) Pax. He (Pax) makes the |
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