distinctions are very finely drawn of many of them, and the per- 
manency of some may be questioned. 
Descr. This is in many respects so closely allied to the S. 
puberula, Webb, above noticed, that we may sum the distin- 
guishing characters in few words. S. Bourgiei has the stem 
and branches more winged, and leaves so waved and lobed in 
the lower half as almost to constitute a lyrate leaf. 
Fig. 1. Stellate hairs of the leaf. 2. Flower. 3. Persistent calyx, enclosing 
the fruit. 4. Bract :—magnified. 
