Refugium Botanicum.| (January, 1870. 
APPENDIX. 
MonoerapH oF Scirua: § LEpEBOURIA AND Drimtopsis. 
Another set of plants, of which, as in Cotyledon § Echeveria, 
there are a large number of species which have not been named 
and described, is the group of bulbs, inhabiting principally the 
Cape of Good Hope, of which Hyacinthus revolutus of Linneeus 
and Lachenalia lanceefolia of Jacquin are the best-known repre- 
sentatives. ‘They constitute the genus Drimia, as defined by 
Kunth (Enum. vol. iv. p. 338); but the whole question of the 
limitation, nomenclature, and mutual relations of this genus, and 
those that border upon it, needs a complete revision, founded 
upon fuller material than Kunth had at his command; and it 
becomes necessary, in the first place, to clear the way by 
attempting to arrive at a clear understanding upon these points. 
We believe that the best characters for tribes in these capsular 
Liliacee are those furnished by the general character of the 
roots, by the general arrangement of the flowers, and by the 
cohesion of the divisions of the perianth. Following out this 
idea, we would define for the racemose bulbs two tribes, one 
called Hyacinthee, for which the genus Hyacinthus, as charac- 
terized under Tab. 174, is typical, in which the six divisions are 
united into a distinct cup or tube; and the other called Scillee, 
in which they are free down to the base. 
As originally circumscribed by Jacquin, Drimia in our view 
forms a well-marked genus of the tribe Hyacinthee, taking its 
place, by the character of its seeds, by the side of Uropetalum, 
and representing in Hyacinthee the genus Urginea in Scille@, in 
the same way that Hyacinthus answers to Scilla. It was, we 
think, under a complete misapprehension that Gawler put into it 
his D. lanceefolia, which Jacquin had described under Lachenalia, 
inasmuch as it wants all the distinctive characters upon which 
Drimia as a genus can be upheld. Unfortunately lancee/folia, 
