56 MobERN TREATMENT OF ASTER 
TABLE SHOWING INCREASE IN RECOGNIZED ASTER SPECIES 
It is difficult to construct a perfectly graded table for compar- 
ison of the growth of the genus Aster, because the limiting lines 
of the genus have varied so much at different times. Approximate 
uniformity is reached however, it is believed, by the plan adopted 
in constructing this table, which is to take as standard the Aster 
species of today as recorded in part in Britton and Brown and in 
part in the Flora Germanica. Species published by earlier authors 
under other genera than Aster are included * in this table if they 
have been included within the Aster limits recognized in the two 
standard authorities adopted. Biotian species, for example, are 
counted in under whatever name published. For Aster Amel/us 
L., the symbol A. A. is occasionally entered. 
Number o 
Author Date Number of Aster-species these still so 
recognized 
IX - 65 A. D. t= Aster Amellus L. 
- I1IO 1 = Eryngium 
demi - 1525 I Les spinosa (L.); (and 
perhaps also — Tragopogon 
in part 
Valérius Cordus - 1535 I — Aster Amellus L. 
Gesner 1561-+- 5 — Pallenis, TNT :halmum, etc. ; 
with A. I 
V. Cordus, as edited 1561 3-— Pallenis; A esi A. A. I 
Matthioli ror ci 2 = Pallenis, A. A. I 
1576 8 — Pallenis, etc. o 
Clusius 1576 Ls 8 . A. A., A. alpinus L., etc. 
1583 J 
Dodoens 1583 3A UE ete. I 
Cesalpino 1583 A AC A alt. I 
Dalechamps 1587 JO =A. A., A. alpinus, etc. 2 
Tabernaemontanus 1588 5 — Pallenis and Inula sp. o 
Colonna 1592+ Bos A. rad Helianthus, etc. [o 
Gerarde 1597 If P x ; I 
C. Bauhin, Zizazx, 1623 Jyek A. rs acti z 
Cornut 1635 2 A American, A. didis ete.) I 
Parkinson 1640 20 (6 American, doubtful from 
scanty descriptions) 
J. Bauhin 1650 IO (none American) 
* Excepting Aster Trifolium L., which had been a fairly uniform segregate from 
first. 
