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OSMOTIC CONCENTRATION OF TISSUE FLUIDS 285 
The foregoing determinations on which the average for the species is based 
are from the leaves of the aerial branches, extending from the trunks. Two 
determinations on the "juvenile" leaves of the creeping stems were secured. 
These are: 
Feb. 13, A = 0.53, P = 6.4; Mar. 4, A = 0.71, P = 8.5. _ _ 
Meriania purpurea Sw. A = 0.87, P — 10.5 
Feb. 22, A = 0.77, P = 9.3; Mar. 2, A = 0.90, P = 10.8; Mar. 13, A = 0.95, 
P = 11.5. 
Miconia quadrangularis (Sw.) Naud. Mar. 13, A = 0.97, P = 11.7 
Miconia theaezans (Bonpl.) Cogn. A = 0.90, P = 10.8 
Feb. 4, A = 0.76, P =9.1; Mar. 13, A = 0.97, P = 11.7; Mar. 13, A = 0.96, 
P = 11.5. 
Palicourea alpina (Sw.) DC. A = 0.69, P = 8.3 
Feb. 13, A = 0.52, P = 6.3; Feb. 24, A 0.78, P = 9.3; Mar. 2, A = 0.63, 
P = 7.6; Mar. 4, A = 0.75, P = 9.0; Mar. 13, A = 0.77, P = 9.2. 
Pilea Weddellii Fawc. & Rendle A = 0.62, ~P = 7.4 
Feb. 22, A = 0.57, P = 6.8; Feb. 24, A = 0.67, P = 8.1; Mar. 4, A = 0.61, 
P = 7.3. 
Piper hispidura Sw. A = 0.50, P = 6.1 
Feb. 13, A = 0.43, P = 5.2; Feb. 22, A = 0.45, P = 5.4; Mar. 13, A = 0.63, 
P = 7.6. 
Podocarpus Urhani Pilger Feb. 24, A = 0.93, P = 11.2 
Young leaves gave: A = 0.81, P = 9.7. 
Psychotria corymhosa Sw. A = 0.76, P = 9.2 
Feb. 20, A = 0.75, P = 9.0; Mar. 4, A = 0.67, P = 8.1; Mar. 13, A = 0.86, 
P - 10.4. 
Schradera involucrata (Sw.) Schum. Mar. 13, A = 1.24, P 15.0 
Solanum punctulatum Dunal Mar. 13, A = 1.14, P = 13.8 
Tovaria pendula R. & P. A = 0.70, P = 8.5 
Feb. 13, A = 0.68, P = 8.2; Feb. 22, A = 0.72, P = 8.7._ 
Vaccinium meridionale Sw. A = 1.33, P = 16. i 
Mar. 2, A = 1.31, P = 15.8; Mar. 13, A = 1.36, P = 16.3. 
Herbaceous Plants 
Anthurium scandens (Aubl.) Engler A = 0.52, P = 6.3 
Feb. 13, A = 0.50, P = 6.0; Mar. 4, A = 0.52, P = 6.2; Mar. 13, A = 0.55, 
P = 6.6. 
ibra Aubl. A 0.30, P = 3.5 
Feb. 4, A = 0.29, P = 3.4; Feb. 13, A = 0.30, P = 3.6. 
Uqua L. A = 0.33, P - 3.9 
Feb. 20, A = 0.31, P = 3.7; Feb. 24, A = 0.33, P = 4.0; Mar. 2, A = 0.35, 
P = 4.2; Mar. 4, A = 0.32, P = 3.8; Mar. 13, A = 0.35, P = 4.2; Mar. 13, 
A = 0.31, P = 3.7. 
Elaphoglossum chartaceum Baker Mar. 13, A = 0.96, P = 11.5 
Fragaria insularis Rydb. Mar. 13, A = 1.09, P = 13. i 
Gesneria mimuloides (Griseb.) Urban A = 0.44, P = 5.2 
Mar. 2, A = 0.42, P = 5.0; Mar. 4, A = 0.45, P = 5.4. 
