1651 
intermediate forms, following on climatic changes in those 
regions. Pampanini (see Fiorl, A. Beguinot and R. Pampanini, 
note on No. 449 Llora Ltalica Exsiccata) believes that Isopyrum 
thalictroides escaped in South Europe the furthest incursion o 
the Polar ice-sheet, and after the last main recession migrated for 
the second time into Central Europe. 
Leptopyrum, which is annual and has yellow sepals, may have 
originated in the course of post-glacial fluctuations; from obser- 
vations by Pallas (Heise iii. 318) its headquarters were restricted 
so recently as 1772, to the sub-alpine tract south of Lake Baical, 
though it was found more sparingly in various localities at lower 
levels; like Fumaria and Hypecoum, which it resembles in its 
et Kir. (1842) which we unite with Paraquilegia uniflora, I. 
Enemion) stipitatum, A. Gray (1876), I. (Hnemion) Aallit,. 
the species in Maximowicz’ enumeration, 1.e. the four American, 
referred by us to Enemion, the European J. thalictroides, I. wnt- 
florum (‘anemonoides’’) and 7. caesmtosum of West Asia, also 
T. adiantifolium, hitherto recorded from Sikkim only, but re- 
ported lately from North Burma as well. Franchet’s revision 
included the following :—JZ. auriculatum, Franchet, I. Henryt, 
Oliver, Z. peltatum, Franchet, I. vaginatum, Maximowicz, I. 
Fargesii, Franch., I. Faurtevt, Franch., 7. sutchwenense, Franch., 
I. Delavayi, Franch. 
