Verbatim text: Schneider, E. L. and S. Carlquist. 2003. Unusual pit membrane remnants in perforation plates of Cyrillaceae. J. Torrey Bot. Soc. 130: 225–230
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of the genus and identification of specimens remains difficult. C. K. Schneider (1919b) stated, “In determining willows one is only too often entirely
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reproduction is largely by root sprouts (J. L. Thomas 1961). Schneider, E. L. and S. Carlquist. 2003. Unusual pit membrane remnants in perforation plates of
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Synonyms: Salix arctica var. antiplasta (C. K. Schneider) Fernald Salix arctica var. araioclada (C. K. Schneider) Raup Salix arctica var. brownei Andersson
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Carlquist1996a Carlquist1998a C cont. Carlquist2000a Carlquist2000b Carlquist2003a S Schneider2003a
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or four-locular ovaries. Variety koehnei (C. K. Schneider) T. T. Yu (synonym P. koehnei C. K. Schneider) has ovate leaf blades with a cuneate base and serrate
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Wash., Asia (China), introduced also in Europe. L. Lingdi and A. R. Brach (2003) included within Cotoneaster horizontalis several taxa recognized here as
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aequalis Andersson Salix pseudocordata var. aequalis (Andersson) C. R. Ball ex C. K. Schneider Treatment appears in FNA Volume 7. Treatment on page 113. Mentioned on
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(China: Sichuan, Xizang), introduced also in Europe. L. Lingdi and A. R. Brach (2003) included as varieties of Cotoneaster salicifolius several taxa that here
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Meeuse1980a O Osborn1988a S Schneider1977a Schneider1979a Schneider1980a S cont. Schneider1982a Schneider1982b Schneider2003a
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B Bayer1998a Bayer1999a B cont. Bayer2003a Bayer2003b S Schneider2004a W Whitlock2001a
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