222 MR. W. B. HEMSLEY ON THE 
cences—heads or clusters of flowers. It will perhaps be as well 
to present this information in a tabular form. The colour is 
that noted by the collectors; the diameter is that of individual 
flowers or inflorescences (Leguminose, Composite, etc.) taken 
from the specimens; and the degree of prevalence is deduced 
from the number of collectors partly, and partly from collectors’ 
remarks accompanying the specimens, and has reference to them 
only as components of the Flora of Tibet. 
Diameter or 
Name. Colour. length. Prevalence. 
Clematis orientalis ...... Yellow. 13 in. Rare. 
Delphinium  ...cceeeeuee Blue. 1, Common. 
Meconopsis horridula,,.... Blue. 13, Common. 
Braya sinents..... 60.606. White. 21 Rare. 
Parrya macrocarpa ...... Purple. 1 ,, Rare. 
Geranium collinum .... Blue. zy Rare. 
Thermopsis.......... .... Yellow. 2 4 Frequent 
Astragalus ...... weeceess Purple. 1, Common. 
SArUfVaga vevsvceccvenes Yellow. 13, Frequent. 
AStEr oo cece Blue. 13, Common. 
Cremanthodium.......... Yellow. li ,, Frequent. 
SAUSSUTED vec e cece eae Purple. 2 4, Common. 
Pedicularis ........ veeeas Red. 2 ,, Frequent. 
Rheum spiciforme ......4. Red. 2 Frequent. 
Allium senescens ........ Pink. 1 ,, Frequent. 
Where only the generic name is given in the preceding table 
it should be understood that there are several similar species and 
that, taken collectively, they constitute a more or less conspicuous 
feature in the vegetation. To the foregoing might be added 
several genera of cushion-like growth belonging to the Crucifere, 
Caryophyllaceew, Primulacer, ete., which produce a profusion of 
flowers, individually small, though collectively conspicuous. 
Repropuction, Propacation, and DisPEersion. 
One of the most interesting questions connected with this 
Inquiry is: How does this scanty vegetation maintain its hold 
under such adverse conditions? And this leads to another: Is 
the vegetation increasing or decreasing? The first question is 
much easier to answer than the second, because we have the 
evidence before us. There are two modes by which reproduction 
