1916.] The Pollination of Flowers in India. 263 



Gentiana bryoides, Burkill, which grows with the last, 

 opens its flowers in the sunshine but is self-pollinating (21- 

 v-09). 



Solanum verbaseifolium, Linn., was seen visited by Aniho- 

 phora zonata, seeking honey in vain (Calcutta, 15-ix-01). 



Scoparia dulcis, Linn., is visited by small bees for pollen 

 in Calcutta (3-viii-01). 



Lippia nodifiora, Rich., attracts but few visitors. Apis 

 was seen on it sucking honey at Pusa, Tirhut (26-V-07). 



Boerhaavia repens, Linn., has been seen visited by two 

 species of butterflies, and by one species of the Syrphidae. 

 (Calcutta, ll-viii-01; ll-ix-01, 14-ix 01 and 20-ix-Ol). 



Achyranthes aspera, Linn., was seen to be visited by Apis 

 dorsata at Dacca (9-v-ll). 



Antigonum leptopus, Endl. The following visitors have 

 been noticed in Calcutta (8-ix-01): — Xylocopa aestuans and 



ndica 



fi 



a 



aestuans and X. latipes have also been seen on the flowers in 

 large numbers in Malacca and Singapore. 



Polygonum eapitatum, Ham., has self-pollination in the 

 closing of the flowers (Rengging, Abor Hills, 274-12). It is 

 however freely visited by Syrphids at Cherrapunji (31-v-ll), 

 and by the Syrphid Eristalis, as well as by the bee Apis 

 at Kobo in Upper Assam (10-iii-l2). 



Polygonum chinense, Linn., was seen to be visited by a 

 Lycaenid at Kobo (4-xii-ll). 



Jatropha gossypifolia, Linn., was seen visited by a Papilio 

 at Plassey (3-ix-07), and also by an Apiid. 



Sapium insigne. Benth., gets the visits of a Melipona to the 

 large extra floral nectaries which are associated with its inflores- 

 cences (Amherst, 12-iii-08). 



Euphorbia pilulifera, Linn., is not uncommonly run over 

 by a black ant which obtains honey from the glands round the 

 flowers (Domohani, North Bengal, 19-vi-09). 



Asparagus filicinus, Ham., has flowers pleasantly scented 

 by day, but they seem scentless at night. The anthers are 

 about 3 mm. from the stigmas. Apis fiorea and two species of 

 Syrphidae, as well as a Calliphora, have been seen on the 

 flowers (Calcutta— 01). 



Cyanotis axillaris, Roem. and Schultes, opens its violet 

 flowers in the morning and the anthers and stigma are 2 mm. 



