470 ANGIOSPERMAEMONOCOTYLEDONES 



by the diverging stigmas, and in every dehisced anther only the pollen of the lobe 

 turned inwards is devoted to autogamy, while that of the lobe facing outwards may 

 be removed by insects after autogamy has been effected. 



2812. T. erecttim L. Loew (' Blutenbiol. Beitrage,' II, pp. 78-9) describes 

 this species as bearing nauseous flowers. 



2813. T. grandiflorum Salisb. The flowers of this species possess no 

 unpleasant odour. 



2814. T. sessile L. 



Visitors. Loew (Berlin Botanic Garden) observed the beetle Cetonia aurata 

 Z., dvg. the stamens in the base of the flower. 



907. Kniphofia Moench. 



2815. K. aloides Moench (=Tritoma Uvaria Ker-GawL). Stadler ('Beitrage 

 zur Kentniss d. Nektarien,' pp. 1-5) describes this species as first protogynous and 

 then homogamous. 



Visitors. Errera and Gevaert (Bull. Soc. roy. bot., Bruxelles, xvii, 1878) states 

 that these are butterflies. 



908. Aphyllanthes Toum. 



2816. A. monspeliensis L. Kemer ('Nat. Hist. PI.,' Eng. Ed. i, II, p. 341) 

 says that in this species the anthers do not at first touch the stigma, because the 

 stamens diverge. Later on, however, these bend inwards, so that the anthers of the 

 three shorter ones come into contact with the three lower stigmatic lobes and those 

 of the three longer ones with the three upper lobes, autogamy being thus effected. 



909. Veltheimia Gled 



2817. V. viridiflora Jacq. Bailey (Bull. Torrey Bot. CI., New York, xiii, 1886, 

 p. 62) describes this series as protandrous. 



910. Camassia Lindl. 



2818. C. Fraseri Torr. Loew (' Bliitenbiol. Beitrage,* pp. 236-7) has described 

 the flower mechanism of this species. 



Visitors. Loew (Berlin Botanic Garden) observed the following. 



The Telephorid beetle Cantharis fusca Z., settling in the flowers, and 2 bees 

 I. Apis mellifica Z. 5, po-cltg. and boring for sap at the base of the ovary ; 2. Osmia 

 fulviventris Pz. S, boring for sap. 



911. Albuca L. 



2819. A. corymbosa Batt. Wilson (Bot. Jaarb. Dodonaea, Ghent, iii, 1891) 

 states that in flowers of this species humble-bees press the petals outwards, force 

 their thorax between the inner anthers and the stigma, and effect cross-pollination. 

 Autogamy is excluded. It was proved by experiment that the pollen of the inner 

 anthers produced the best results. 



