( 475 ) 



INDEX. 



ABUTILOX. 



A. 



measure- 

 heights of 



Abutilon darwinii, self- sterile in 



Brazil, 333, 358 ; moderately self- 

 fertile in England, 314 ; fertilised 



by birds, 371 

 Acacia sphxrocephala, 406 

 Acanthacex, 96 

 Aconitum napellus, 431 

 Adlumia cirrhosa, 366 

 Adonis lestivalis, 12S 



ments, 128; relative 



crossed aud self-fertilised plants, 



277 ; self-fertile, 365 

 Ajuga reptans, 368 

 Allium cepa (blood-red var.), 369 

 Anagallis collina (var. grandiflora), 



217, 267; measurements, 218; 



seeds, 316, 323, 325 

 Anderson, J., on the Calceolaria, 87 ; 



removing the corollas, 423 

 Anemone, 396 

 Auemophilous plants, 401; often 



dicliuous, 411 

 Antirrhinum majus (red var.), 363; 



perforated corolla, 432 



(white var.), 363 



(peloric var.), 363 



Apium petroselinum, 172 ; result of 



experiments, 277 

 Argemone ochroleuca, 366 

 Aristotle on bees frequenting flowers 



of the same species, 418 

 Aristolochia, 420 

 Arum maculatum, 420 



B. 



Bailey, Mr., perforation of corolla, 

 430 



BENNETT. 



Bartonia aurea, 170 ; measurements, 

 170, 171 ; result of experiments, 

 277 



Bartsia odontites, 369 



Beal, W. J., sterility of Kalmia 

 latifolia, 359 ; on nectar in Ribes 

 aureum, 435 



Bean, the common, 435 



Bees distinguish colours, 373; fre- 

 quent the flowers of the same 

 species, 418, 423; guided by 

 coloured corolla, 423; powers of 

 vision and discrimination, 425; 

 memory, 426; unaitracted by 

 odour of certain flowers, 426 ; 

 industry, 427; profit by the co- 

 rolla perforated by humble-bees, 

 430 ; skill in working, 431 ; habit, 

 434 ; foresight, 436 



, humble, recognise varieties 



as of one species, 419 ; colour 

 not the sole guide, 424; rate of 

 flying, 427; number of flowers 

 visited, 428; corolla perforated 

 by, 429, 436; skill and judgment, 

 432 



Belt, Mr., the hairs of Digitalis 

 purpurea, 82 ; Phaseolus multi- 

 fiorus, 151 ; not visited by bees 

 in Nicaragua, 360 ; humming- 

 birds carrying pollen, 371 ; se- 

 cretion of nectar, 404 ; in Acacia 

 sphxrocephalus and passion- 

 flower, 406 ; perforation of corolla, 

 433 



Bennett, A. W., on Viola tricolor, 

 123; structure of Impatiensfulva, 

 367; plants flowering in winter, 

 386 ; bees frequenting flowere of 

 same species, 419 



