DRAWINGS IN THE TEXT 



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lO. 



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Root System of Liatris puttctata . . . . 



Root Systems of Plants of Washington Prairies 



Root System of Opuntia versicolor . 



Root Systems of Euphorbia montana 



Root System of Kuhnia glutinosa 



Leaf-pitcher of Dischidia Rafflesiana 



Absorbing Hair of Tillandsia usneoides 



Diffusion Shells . . ■ . 



Stoma of Cereal .... 



Starch Content of Guard Cells . 



Starch Content and Stomatal Opening 



Water Loss and Stomatal Aperture 



Light, Temperature and Assimilation 



Sun and Shade Leaves of Beech . 



Transpiration of Euphorbia capitellata 



Transpiration and Stomatal Movement 



Transpiration and Stomatal Movement 



Daily Stomatal Movement in Potato 



Structure of Stomata 



Leaf of Aira ccEspitosa 



Cladodes of Butcher's Broom 



Acacia nereifolia 



podostemon 



Attachment of Parasites 



Mistletoe 



Rosa de Palo . 



Cytinus hypocistis 



Hydnora africana . • 



Thismia Aseroe . 



Ectotrophic Mycorhiza . 



Seedlings of Heather 



Germination of Orchid . 



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