
Vol. IV, No. 4.] Notes on the Pollination of Flowers. 207 
[N.S. 
Tube or spur, 3 mm. and less (Class H., rather than B.) 
Polygala abyssinica, Fresen. Se w). 
Polygala crotalarioides, Buch.-Ham. (above). 
Medicago denticulata, Willd. (helen. 
Indigofera linifolia, Retz. (below). 
Desmodium polycar, pum, D.C. (below), 
A 4 
Vicia tetrasperma, Moench (above). 
Loranthus ligustrinus, Wall. (below). 
Tube or spur 3 mm. and less (Ciass B., rather than H.) 
Verbascum Thapsus, Linn. (below 
Celsia coromandeliana, Vahl (below). 
Veronica ser pyllifolia, Linn. (above). 
Lippia nodiflora, Rich. (below). 
Verbena officinalis, Linn. (below), 
Mentha sylvestris, Linn. (below 
Habenaria Griffithii, Hook. f. (above). 
Horizontal pollen flowers (but of Class H.) 
Casga Fistula, Linn. (below). 
Cassia Tora, Linn. (below). 
Erect FLowers. 
Marked moth-flower, 50—65 mm. deep (Class F.) 
_ Datura Stramonium, Linn. (below). 
Marked butterfly-flower, 25—-30 mm. deep (Class F.) 
Dedalacanthus nervosus, T. Anders. (below). 
Marked moth-flower, 20—25 mm. deep (Class F.) 
(Enothera stricta, Steud. (above). 
Plumbago zeylanica, Linn, (below). 
Marked moth-flower, 15—20 mm. deep (Class F.) 
Silene conoidea, Linn. 
Butterfly flowers, 10—15 mm. deep (Class F.) 
Reinwardtia trigyna, Planch 
Kalanchoe spathulata, D.C. (below). 
CEnothera tetraptera, Cav. ent 
Primula petiolaris, Wall. (above). 
Primula denticulata, Smith h above). 
Nerium Ole , Linn. (below). 
Clerodendron infortunatum, Gertn. (below). 
