1997 
* HORKÉLIA fúsca. 
Dusky Horkelia. 
DECANDRIA POLYGYNIA. 
Nat. ord. Rosacez, $ POTENTILLER. 
HORKELIA. Schlecht. Calyz campanulatus, semidecemfidus, laciniis 
alternis accessoriis. Petala 5, parva. Stamina 10, biseriata, net parietibus 
inserta. Receptaculum conicum, siccum, villosum. Ovaria indefinitċ nume- 
rosa. Styli simplices, cum ovario articulati, subterminales. Achenia calyce 
inclusa. Schlecht. in Linnaa. 2. 26. 
H. fusca ; glanduloso-pubescens, foliis radicalibus pinnatis 6-7-jugis laciniis 
cuneato-oblongis pinnatifidis vel palmatifidis incisis, paniculis corymbosis 
capitatis, sepalis integerrimis, bracteis palmatis capitulis brevioribus. 
It is rather singular that the original s ecies of this 
genus should never have been found by Mr. Douglas in 
California, although he detected in that part of America as 
many as five new species. Of these one has been published 
in the Botanical Magazine under the name of H. congesta 
(fol. 2880); the subject of this notice is another; and a 
brief account of three others, in the Herbarium formed by 
that Naturalist, will be found below. They are all erect 
herbaceous plants, resembling some Potentillas in their 
general aspect, but with flowers collected into heads, ungui- 
culate petals, ai campanulate calyx, and ten stamens, often 
with ovate petaloid filaments. ey form a transition from 
Potentilla to the genus Sibbaldia, and thus assist in estab- 
* « Named in honour of John Horkel, Professor of Physiology at Berlin, 
who would be admitted on all hands to be one of the first botanists of our age, 
if he could but be persuaded to commit to paper the treasures of his immense 
erudition, and of his profound knowledge of nature and of plants." —Schlecht. 
