Vol. iN si 10.] Notes on the Pollination of Flowers. 525 
the mouth of the tube under the anthers and stigmas, which stand 
exposed over the landing stage. - The distal teeth diverge, but are 
Ohanal rys. The outside of the corolla is not hairy: the gamo- 
mite calyx protects the lower half of it from the biters of 
corollas. 
The flower is proterandrous, and when it has just opened the 
stigma is behind the stamens: it moves forward during flowering 
as indicated in fig. 
{ 
weight of a suitable insect-visito 
EXPLANATION OF THE PLATE. 
All the flowers are represented exactly twice their natural 
size, and at the angles which they take in life. 
Fig. 1. Flower of Morina persica 
Fig. 2. Flower of Teucrium royleanum ; the early and the 
late positions of the style are dotted in. 
ig. 3. Section through the tube of Teucrium royleanum 
near the base to show the way in which the honied part of the 
tube is made small and the distribution “3 Sonia in 
ig. 4. Flower of Salvia lanata, the position of the 
stamens dotted in: s. is the tooth on the cael anther-lobe. 
Fig. 5. na reagan of Salvia lanata in the position that a bee 
makes it to t 
ig. 6. Power of Dicliptera bupleuroides with its bracts. 
Fig. — and style of Dicliptera bupleuroides to shew 
the twist of the tu 
Fi  Oasclla: of Dicliptera buplewroides seen from the 
front and from slightly below. 
9. Flower of Scutellaria linearis, with the position of 
the ohisieale dotted in: the narrow lobe at ‘the base of the upper 
Fig. 11. Flower of Adhatoda Vasica just after opening. 
Fig. 12. Diagrammatic section a. the tube of Adhatoda 
Vasica at the invaginations near its 
