Vol. IV, No. 4.] Notes on the Pollination of Flowers. 221 
[N.S.] 
black ant is the only insect a I se seen at the small amount 
of honey present. I observe that the relative height of the 
anthers and stigma in openi ” ee is variable and that self- 
areca though -_ eek is frequent. Visitor. HYMEN- 
OPTERA. Fo icidae. (1) Black ant, sh., 9,000 ft., 
30-iy -iv-07, 
Deutzia staminea, R. Br. Not freely visited. Visitor. 
DIPTERA, Syrphidae. (1) Hristals sp., 6,000 ft., 11- 
v-07. 
Kalanchoe spathulata, D.C. The tube of the flower is 13— 
1 The 
14 mm. long. anthers are placed at two slightly different 
heights in it, the pee eh searcely 1 mm, from the mout 
and the lower 1:5 mm. from the mouth. The styles mah Wa 
carry the stigmas mach the sien anthers up to the lower edge o 
the upper anthers; and there is considerable probability of self- 
pollination. Honey is plentiful; and there are five approaches to 
it down the flutings of the ovary. 
Sedum adenotrichum, Wall. The petals are white, striped 
with pink lines inside and flushed with pink outside. They form 
glandular. Honey is freely secreted by the five nectaries at 
the base of the flower. The open flower is nearly erect. When 
it first opens, five anthers dehisce, then the other five; at this 
time the anthers form a ring 1°5 mm. across, the finest five being 
slightly above the others, and the s stigmas somewhat drawn to- 
pomer in the centre. As the flower ages the anther-ring becomes 
across, all the anthers become level, and the stigmas 
Sane close to them, but not normally in contact. 
Casearia graveolens, Dalz. Visitors. Soy heer 
Apidae. (1) Apis indica, Fabr., sh., 2,000 ft., 11-v-07. 
CGEnothera rosea, ie Though honey is poe in the 
57 mm, long tube, yet v sitors are rare. The deep lip-purple 
flowers open in the morning the anthers debit as they expand, 
and the stigmas, spreadi very soon after, come early i -_ 
contact with them. | Visitors. HYMENOPTERA. Apida 
(1) Xylocopa settled to suck on several flowers which its weight 
bore down to the ground and the fall rk “a ats = ian 3 
again, 6,000 ft., 11-v-07. LEPIDOPTERA alo 
(2) A Pierid, 5,000 ft,, 22-v-06. COLEOPTIRA: “3) 1 beietles 
7,000 ft., 4-v- 
Woodfordia floribunda, Salish, There is a ga quantity 
of honey in the tube of the flower at which ants wer , 4,000 ft., 
ba se The tube is sometimes bitten throngh aparently by a 
ombus, 
