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EXPLANATION OF PLATES 
PLATE IX 
Cryptostemma 
All figures x 10, and drawn from living material. 
Fig. 1. A newly opened disc-floret, with the projecting staminal tube still closed. 
Fig. 2. A disc-floret at the completion of pollen presentation. The style head is 
thickly covered with yellow pollen. 
Fig. 3. Curvature of the style in response to contact stimulus. 
Fig. 4. An elongated style after removal of the pollen by insects. 
Fig. 5. A young style, dissected from an unopened staminal tube. 
Fig. 6. A staminal tube, partially covering the retracted style head. 
Fig. 7. A disc-floret ready for pollination. The very short style branches have diverged, 
exposing the stigmatic surfaces. 
PLATE X 
A. Empleurum fragrans, Glover. B. Erica latiflora, L. Bolus. 
C. Erica Ethelae, L. Bolus. D. Erica dulcis, L. Bolus. 
A. Fig. 1, leaf; 2, flower rj; 3, flower $; 4, ditto, longitudinal section; 5, carpel; C, ditto, 
longitudinal section. 
B. Fig. 1, leaf; 2, flower; 3, calyx and bracts; 4, sepal; 5, corolla; 6, stamen, side view; 
7, ditto, back view; 8, ditto, front view; 9, gynaeceum — variously enlarged. 
C. Fig. 1, leaf; 2, flower; 3, calyx and bracts; 4, sepal; 5, corolla; 6, stamen, side view ; 
7, stamen, back view; 8, gynaeceum — variously enlarged. 
D. Fig. 1, node; 2, flower; 3, calyx and bracts; 4, sepal; 5, corolla; 6, stamen, back 
view; 7, stamen, side view; 8, gynaeceum — variously enlarged. 
PLATE XI 
A. Erica gallorum, L. Bolus. B. Erica excavatum, L. Bolus. 
C. Erica Westii, L. Bolus. D. Erica Symonsii, L. Bolus. 
E. Erica Cameronii, L. Bolus. 
A. Fig. 1, node; 2, flower; 3, calyx and bracts; 4, sepal; 5, corolla; 6, stamen, side 
view; 7, stamen, back view; 8, gynaeceum — variously enlarged. 
B. Fig. 1, node; 2, flower; 3, calyx and bracts; 4, sepal; 5, corolla; 6, stamen, side 
view; 7, stamen, front view; 8, gynaeceum — variously enlarged. 
C. Fig. 1, flower; 2, sepal; 3, corolla; 4, stamen, side view; 5, stamen, back view— 
variously enlarged. 
D. Fig. 1, node; 2, flower; 3, corolla; 4, stamen, back view; 5, stamen, side view; 
6, gynaeceum — variously enlarged. 
E. Fig. 1, node; 2, bracts; 3, sepal; 4, corolla; 5, stamen, front view; 6, ditto, side 
view; 7, gynaeceum — variously enlarged. 
