460 MESSRS. J. PARKIN AND H. H. W. PEARSON ON THE 
(5) “Wet” patana plants are more hairy, which may 
explain their rather thinner outer epidermal cells 
and the more frequent occurrence of raised stomata. 
(c) Arched epidermal cells and wavy lateral epidermal 
walls are somewhat commoner amongst the “ wet” 
patana plants. 
(d) Stomata are rather more numerous amongst the “ dry” 
patana plants. 
(ce) The ratio of the length of the palisade-cell to its 
breadth is rather greater amongst the “ dry ” patana 
plants and a double-layered palisade is commoner. 
(f)“ Wet” patana plants have on the whole a more 
compact mesophyll, 7. e. less intercellular space. 
(2) Many of the erect and semi-erect leaves show an isobilateral 
structure or a tendency thereto, but there are some striking 
exceptions among the “dry ” patana plants. 
(3) A double-layered upper epidermis or hypoderm occurs in six 
plants. 
(4) Peculiar additional lateral epidermal walls are present in the 
leaf of Hypericum mysorense. 
(5) Eight species have cells in the epidermis of the leaf with 
inner (basal) walls much thickened and mucilaginous. 
(6) The spongy cells of the mesophyll of Mussenda Srondosa have 
relatively very thick walls which are not true cellulose, 
and hardly appear to be mucilaginous. 
(7) The tuberous roots of Pedicularis zeylanica and Spiranthes 
australis contain “ red” starch—two new examples of this 
comparatively rare reserve carbohydrate. 
(8) The stem of Glochidion zeylanicum has often two additional 
steles (cortical bundles) traversing longitudinal swellings 0D 
opposite sides of the internode. 
(9) Attention is called to the conspicuous glands borne on the 
large stipules of Hedyotis verticillaris. 
X. Concituping REMARKS. 
Tn a former paper it was stated that “the flora of the patanas 
as a whole is composed of plants which, generally speaking, 
present characters which tend to reduce transpiration and to 
protect delicate parts from the injurious effects of intense 
