29 



* DAHLIA glabrata. 

 Smooth Dwarf Dahlia. 



SYNGENESIA POLYGAMIA. 

 Nat. ord. AsTERACE^, or Composite, § Asteroidece Ediptece, DC. 

 DAHLIA. Botanical Register, vol. \.fol. 55. 



D. glabrata ; caiile viridi glaberrimo fistuloso, foliis bipinnatis glabris su- 

 perioribus linearibus indivisis, rachi alata ; foliolis ovatis acutis grosse 

 serratis ciliatis, ligulis foemineis, involucri foliolis extimis linearibus 

 patentibus. 



Herba perennis, radicis fasdculatcB digitis tenuibus inter se parum in- 

 {Bqualibus. Caulis glaberrimus, ramosus, 3-pedalis, fistulosus. Folia glabra, 

 nitida ; inferiora bipinnata rachi alatd ; foliolis ovatis, g?-osse et pauce ser- 

 ratis, ciliatis, nunc basi rotundatis, nunc decurrentibus et confiuentibiis ; pari 

 unico ad utramque petioli furcam ; superiora multb minora, demhn linearia 

 simplicissma. Capitula iis D. variabilis similia, bract eis exterioribus patenti- 

 bus linearibus. higulse jiallide purpurea Jceminea . Ovana, setd una alterdve 

 minutissimd 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 Dahlice 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, Barkerice, 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 Linnaeus, 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. 



Mag, 1840. l 



