mi 
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* DAHLÍÁ glabrata. 
Smooth Dwarf Dahlia. 
SYNGENESIA POLYGAMIA. 
Nat. ord. AstERACEs, or COMPOSITA, $ Asteroidee Ecliptee, DC. 
DAHLIA. Botanical Register, vol. 1. fol. 55. 
D. glabrata ; caule viridi glaberrimo fistuloso, foliis bipinnatis glabris su- 
perioribus linearibus indivisis, rachi alatá; foliolis ovatis acutis grossé 
serratis ciliatis, ligulis foemineis, involucri foliolis extimis linearibus 
patentibus. 
Herba perennis, radicis fasciculate digitis tenuibus inter se parum in- 
equalibus. Caulis glaberrimus, ramosus, 3-pedalis, fistulosus. Folia glabra, 
nitida; inferiora bipinnata rachi alatá; foliolis ovatis, gross? et paucé ser- 
ratis, ciliatis, nunc basi rotundatis, nunc decurrentibus et confluentibus ; pari 
unico ad utramque petioli furcam ; superiora multó minora, demim linearia 
simplicissima. | Capitula tis D. variabilis similia, bracteis exterioribus patenti- 
bus linearibus. Ligule pallidê purpuree feminee. Ovaria setd und alteráve 
minutissimá pappi loco. 
A native of Mexico, whence its seeds were obtained by 
George Frederick Dickson, Esq. who presented them to the 
Horticultural Society ; they were marked Dahlia sp.—sub- 
frigid districts—with lilac flowers. 
It is evidently different from D. scapigera, a new species 
from the same country, in its bipinnate leaves and branching 
habit; and also from D, Barkerie, another of very recent 
introduction, in its smoothness and its fistular stem ; nor does 
it appear probable that it should be a mere variety of D. va- 
riabilis, whose endless offspring have filled the gardens with 
gay autumnal flowers. At least it appears to differ from that 
variable species, not only in its naturally dwarf habit and 
* As this word was formed after the name of Andreas Dahl, a Swede, 
and pupil of Linnseus, it should be pronounced with a broad, as in park, and 
not like the a in pale. There is also a Dalea, named after John Dale, an 
Englishman, to which the latter sound belongs. 
May, 1840. L 
