tori *. 



THE 



Vol. I. NOVEMBER, 1919. No. 3. 



THE PHYSIOLOGICAL ANATOMY OF THE 

 PLANTS OF THE INDIAN DESERT 



BY 



T. S. Sabnis, B.A., B.Sc. 



St. Xavier's College, Bombay. 



{Continued from last issue.) 



Cleome brachycarpa Vahl. Figs. 13, 14, 19, 20, 21. Herbaceous. 

 Front cavity of stomata on a level with the surface. Guard-cells a little 

 above the plane of the surrounding cells. Mesophyll isobilateral. 

 Some of the palisade cells with tanniniferous contents. Middle tissue 

 of the mesophyll formed of large colourless parenchymatous cells. 

 Veins provided with colourless sheaths. Glandular hairs multicellular 

 and capitate. Outer walls of the epidermal cells of the axis granulated. 

 Axis ribbed. Pericycle formed of large thin groups of stone-cells. 

 Assimilatory tissue in the axis consisting of chlorenchyma. Wood 

 composite. Soft bast forming a continuous ring. Pith formed of 

 thin-walled cells. 



Cleome viscosa L. Figs. 15, 16, 28. Herbaceous. Epidermis 

 of the leaf formed of thin-walled cells. Guard-cells elevated a little 

 above the plane of the surrounding cells. Front cavity of the stomata 

 in a level with the surface. Mesophyll formed of palisade tissue 

 on the adaxial side and of arm-palisade tissue on the abaxial side. 

 Internal glands absent. Glandular hairs multicellular and capitate. 

 Veins not provided with sheaths. Stone-cell groups of the pericycle 

 triangular. Assimilatory tissue of the axis formed of chlorenchyma. 

 Wood composite. Soft bast forming groups. Pith formed of thin- 

 walled cells. 



Gynandropsis pentaphylla DC. Figs. 22, 23, 24, 25, 26, 29. 

 Herbaceous. Guard-cells a little elevated above the plane of the 

 surrounding cells. Mesophyll formed of palisade tissue on the adaxial 

 side and of spongy tissue on the abaxial side. Internal glands absent, 



