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ASTER CLAYTONI 225 
lection destroyed at sea and so never published by Gronovius. (2) 
A, divaricatus L., is a reference Forster might have thought of for 
767, but that species was not yet disentangled from Doellingeria 
infirma, a non-cordate plant evidently remote from the cordate 
no. 767 sought. 
1831 +. A specimen, apparently of A. C/aytoni, collected near 
Pittsburg, Pa., by Voltz, 1831, and now in the hb. Br. Mu. (Nat. 
Hist.), was made the type by Shuttleworth of his new MS. species 
Biotia stricta; fide Mr. Edmund G. Baker, who remarks zz (itz. 
“it must approach this Clayton plant [no. 767] very closely,” and 
who cites its similar inflorescence and its scabrid serrate leaves. 
Shuttleworth's name seems not to have been published, and had 
been long antedated by an Aster strictus of Pursh and by three or 
four others. 
1897. My identification of my plants of A. Clayton with Clay- 
ton's type specimen for his no. 767 rests upon comparisons kindly 
made for me by Mr. Edmund G. Baker, of the Natural History 
section of the British Museum, in 1897, with Clayton's type speci- 
men there preserved in the Gronovian herbarium. I sent to him 
five native forms which in one way or another suggested Clayton's 
description 767. Of these, two were forms of A. Schreberi and 
two of A. umbelliformis. The fifth was a plant of A. Claytoni grow- 
ing on Dyckman Ave. Rock, Inwood, Manhattan I., and concerning 
it Mr. Baker wrote, Aug. 10, 1897, “ no. 5 seems to match the Vir- 
ginia Clayton plant much the best, and must be very close toit if not 
absolutely identical.” Mr. Baker further remarked that the other- 
wise similar pappus in the Virginia plant was darker and now rust- 
colored (the normal effect of age, as he himself queried) ; and that 
“ we had provisionally referred Clayton's no. 767 to Aster corym- 
bosus Ait. in our herbarium.” At the time when he wrote, 1897, 
A, corymbosus Ait. was certainly the nearest published species to 
which to refer any plant of A. C/aytoni. 
306. ASTER CLAYTONI CRISPICANS Burgess 
Plants unlike A. Claytoni in having sharper-bevel bracts, more 
attenuate acumination, more petioled axiles, more rounded bases, 
more shallow sinuses, closer narrower kerf-edge teeth. 
Name, L., crispi. ising up and down like successive waves; in allu- 
