Vol. Ill, No. 7.] Pollination of Flowers in India. 519 



are self-fertilised. In tlie late afternoon the corolla withers, 

 having been expanded but a few hours. The capsules apparently 

 only proves infertile when there has chanced to be a scorching 

 dry west wind. 



The stigma in these cotton flowers is typically undivided. 

 Stigmatic hairs cover its apex and run down in three lines to the 

 limit of, or even to 1 — 2 mm. within, the staminal tube. In any 

 flower that has been open for a few hours the stigma is found well 

 dusted with pollen at the base and sparingly about the apex. 



The stigma of Asl Deshi {GossypiuTti intermedium) projects 

 often only 1 — 2 mm. from the staminal tube instead of the 4 mm. 

 that the stigmas of Bhogila and Bara-isar {Gossypium neglectum) 

 project. 



Outside the calyx, within the bracts and opposite to the 

 clefts between them, are three extrafloral nectaries, which secrete 

 honey from the time when the buds are half-grown until the 

 bolls are ripe. These nectaries are somewhat freely resorted to 

 by insects as my second list below shows. Any insects can get 

 their honey. 



List of Visitors which webb seen to enter the Flowers. 



[Sh. = sucking honey : cjf>. = collecting pollen : seeking h. = seeking 

 honey in vain : the hours of observation are given as they may 

 he useful ultimately in the study of the habits of insects; hut 

 owing to the heat of midday in May, I tvas only able to make 

 few observations at t7.] 



Hymenoptera. a p i i d a e. (1) Apis indica. Fabr., cp., 

 Dalsing Sarai, 9.0 a.m. 29-V-07. (2) Apis florea^ Fabr., cp., 

 Dalsing Sarai, 9,45 a.m., 29-V.07 ; Sirseah, 11.0 a.m., 31-V-07. 

 (3) Xylocopa fenestrata.y Fabr., sh., Pusa, 9,15 a.m., 26-V-07 ; 

 Dalsing Sarai, 9.45 a.m., 29-V-07. (4) Anthophora zonata, 

 Linn., sh., Barh, 8.0 a.m., 5-vi-07. (5) Geratina viridissima, 

 Dall.-Torr,, seeking !»., Pusa, 8.0 a.m., 27-V-07 ; Dalsing Sarai, 

 9.0 a.m., 29-V-07 ; Sirseah, 11.0 a.m., 31-V-07 ; Sarai, 9.0 

 a.m., l-vi-07; Barh, 7.45—9.15 a.m., 5.vi-07. (6) Geratina 

 hieroglyphic a^ Smith, seeking h., Barh, 7.45 a.m., 5-vi-07. (7) 

 Halictus senescens^ Smith, cp. and seeking h., Pusa. 7.30 — 9.15 

 a.m., 26-V-07; 9.30 a.m., 27-V-07 ; Dalsing Sarai 7.45—9.30 

 a.m., 29-V-07; 8.30 a.m., 30-V.07 ; Saing, 7.30—8.30 a.m., 

 31-V-07; Sirseah, 11.0 a,m,, 31-V-07 ; Sarai, 10.0—10.30 a.m., 

 l-vi-07; Barh, 7.45—9.15 a.m., 5-vi-07 ; 7.15 a.m., 6.vi-07. 

 (8) Halictus sp. (whit€ faced), cp., Saing, 8.0 a.m., 31-V-07. 

 E umenidae, (9) RhynchiummetaUicumy Sauss., crawling into 

 flowers, 2.0 p.m., 29-V-07. Sphegidae. (10) Cerceris alhopicta. 

 Smith, once seeking h., Barh, 8.15 a.m., 5-vi-07. Mutil- 

 1 i d a e . (13) Mutilla analis, Lepel., at base of flowers ap- 

 parently seeking h., Barh, 8.15a.m., 5-vi-07, Pompilidae. (11) 

 Salitis fla'Ous^ Fabr., inside flower, Dalsing Sarai, 9 a.m., 29-V-07. 

 Scoliidae. (12) Elis thoracica^ Fabr., & & 9 chiefly 9 seeking 



