1921-22.] BOTANICAL SOCIETY OF EDINBURGH 149 



scabrid ; the buds are almost glabrous. We see here again 

 a blending of the characters of sutchuevense and Thayerae. 

 Other collections show the same variations. Forrest, 2803, 

 from the Lichiane: Ransje, likewise named Davidi, shows 

 slightly scabrid leaves and faint villosity on the perianth. 

 Forrest, No. 494, from grassland on the shores of Lake 

 Las-Hsi-pa, Yunnan, named Davidi by Mr. Wilson, shows 

 the same small bulb, a distinct rhizomatous prolongation, 

 flat, linear leaves which cannot be called scabrid, while the 

 single flower shows no remains of villosity. It is, however, 

 rather far developed. Here again we have the same 

 blending of characters. From Eastern Yunnan we have 

 Maire, 2658, which would pass for a tj'pical Thayerae, 

 except that the leaves are not scabrid, while the flowers 

 have shed their villosity if they ever had it. 



I have given these details perhaps at some wearisome 

 length. I shall now try to summarise the foregoing : — 



1. L. Davidi, Duchart. ex Elwes, was described from 

 imperfect material, and too much stress laid on its very 

 slightly re volute perianth, its villosity, and its colour. 

 Franchet consequently did not think of contrasting it with 

 his sutchuenense. 



2. Mr. Wilson identifies his Thayerae with Davidi. 

 This decision on the evidence I would accept. 



8. L. sutchuenense, Franch., is a unit as regards the 

 specimens cited by the author and not divisible into 

 sutchuenense and Thayerae (i.e. Davidi). 



4. L. Davidi (including L. Thayerae), not uncommon in 

 the wild state, is a widely spread, cultivated lil}^ showing 

 many divergences in habit and in villosity. Typical 

 Davidi shows pronounced villosity and little or no rhizo- 

 matous growth. But it varies to forms with glabrous 

 perianth and creeping rhizome. 



5. The form with glabrous perianth is the lily called 

 sutchuenense by Franchet. This is not more than at 

 most a variety of Davidi. 



6. L. Davidi is consequently a variable lily including 

 Thayerae, E. H. Wilson, and sutchuenense, Fr., these two 

 forms showing a transition from marked villosity to 

 glabrousness in the perianth. 



