294 DESCRIPTION OF ASTERS ; CURVESCENTES 
biguus as well as his A. suócymosus appear * as cultivated in the 
garden of Turin in Capelli's catalog of 1821; the source being 
probably cuttings from the Erfurt plants. The source in America 
of A. ambiguus may have been Pennsylvania, like so many of 
Bernhardi’s plants; but the original collector cannot have been 
Póppig, whose coming to Pennsylvania was in 182 
One specimen which may be referred to Bernhardi's A. ambiguus 
survives in his own herbarium as now preserved in the Hb. Mo. 
Bot. Gar., though under t label A. Schrebert, to which species 
Nees had. asigned it. 
In 1832, Nees (p. 138 of his Genera et Species Asterearum), 
describing his new variety 8 of his A. Schreberi, grouped under 
that variety four garden-names. The third of these citations was 
that of this Breslau specimen, derived from Bernhardi's plant of 
Erfurt, the citation reading 
* Aster ambiguus Bernh. Horti Vratisl., ex Hort. Erfort." 
Probably it was the red stem of this plant, unlike the greenish- 
brown of most other Schreberan allies, which caused Nees now to 
add to his description of A. SeAreberi, "Caulis saepe purpurascit." 
In Jan., 1899, while working, through kindness of Dr. B. L. 
Robinson, over the Asters received by Asa Gray from Nees, now 
lodged in the Gray herbarium, I discovered among them a sheet 
representing this forgotten species, so labelled by Nees himself, 
and mounted apparently at a time between 1818 when Nees pub- 
lished his A. Schreberi and 1825 when Cassini published its cognate 
A. macrophyllus as a peo of Eurybia; under which genus Nees 
now newly labelled it 
Nees' label reads 
“ Aster iran H [or]t. b[ot.] Vr[atislavensis], nomine 
A. ambigu[u]s " 
with the addition above, of its new name, 
* Eurybia Schreberi.” 
Gray with his wonted broad-minded care for the personal re- 
lation of plants, noted on this label that these words were in Nees' 
own hand, and I find that they agree with other known examples 
of his writing. 
Shortly before Nees’ death, he gave this specimen, in 1856, 
to Hohenacker; so Hohenacker wrote below the previous label, 
Gray continuing that it was “ obtained by Klatt of Hohenacker, in 
1870 [and] given to A. Gray, 1885." 
* P. 12, of Catalogus stirpium que aluntur in regis horto Taurinensi. Augusta 
eee 1821, 8vo, 67 p.— Carlo € 1763-1831, was physician to the 
ces 1792-1811, agai of medical botany at Turin, cs collator of 
he Flore eni, and author of the above Catalog of the Turin Garden 
