EXPLANATION OF THE PLATES. 
I. Cinchona succirubra, After specimens grown by Mac Ivor, in 1875, 
in Ootacamund. 
Il. Cinchona Calisaya, Var. Ledgeriana. After specimens from Java. 
a, longitudinal section of a flower. 4, Jongitudinal section of a 
flower with a short style (the so-called male form, macho of the 
Spanish). c, longitudinal section of a flower with a long style (the 
so-called female form, Hembra). 
Ill. Cinchona Calisaya, Var. Ledgeriana. After specimens from Java. 
Representing the magnified capsule of a form provided with hairy 
fruits, and seed magnified ten-fold, 
IV. Cinchona lancifolia. After specimens from Java, with the use of 
plates XI and XII in Karsten’s Mor. Columb. specim. select. 
V. Cinchona officinalis. A flowering branch from Darjeeling. Cascarila 
heterocarpa (magnifolia). After Karsten’s Flor, Columb. specim. 
_ sel, plate VI. Representing the capsules, dehiscing from the 
apex. 
VI. Remijia pedunculata, (Cinchona pedunculata) from Karsten’s Flor. 
Columb. spec. sel. Tab. XXVI. 
VII. A. Cinchona Calisaya, transverse section of a young bark. B. Cin- 
chona Calisaya, transverse section of an older bark. C. Cinchona 
lancifolia, transverse section of the bark. ¢, cork; 4, sclerenchyma 
euoggrrer 0, outer bark; J, lacticiferous ducts; g, bast rays 
bast wedges); 7, medullary rays; s, bast fibres (bast tubes); %, 
staff-shaped sclerotic cells (staff fibres); v, bast. In the lower 
figures, sr represents bast fibres of Cizchona cuprea; sc, bast fibres 
of Cafisaya and other “true” Cinchona barks, . 
VIII. Cinchona cuprea. A highly magnified transverse section. ¢, older; 
J, younger cork; 4, sclerenchyma (stone cells); 0, outer bark; 2, 
lacticiferous ducts; 7, medullary rays; s, bast fibres (bast tubes); 
v, bast; x, crystal ducts. 
