Delpino states that this plant presents in Italy three forms, which graduate from an anemophilous into an entomophilous condition. According to H. Muller, there are only two forms in Germany, neither of which show any special adaptation for insect fertilisation, and both appear to be hermaphrodites. (7/19. ‘Die Befruchtung’ etc. page 342.) But I have found in two localities in England female and hermaphrodite forms existing together; and the same fact has been noticed by others. (7/20. Mr. C.W. Crocker ‘The Gardener’s Chronicle’ 1864 page 294. Mr. W. Marshall writes to me to the same effect from Ely.) The females are less frequent than the hermaphrodites; their stamens are short, and their anthers, which are of a brighter green whilst young than those of the other form, dehisce properly, yet contain either no pollen, or a small amount of imperfect grains of variable size. All the flower-heads on a plant belong to the same form. It is well known that this species is strongly proterogynous, and I found that the protruding stigmas of both the hermaphrodite and female flowers were penetrated by pollen-tubes, whilst their own anthers were immature and had not escaped out of the bud. Plantago media does not present two forms; but it appears from Asa Gray’s description, that such is the case with four of the North American species. (7/21. ‘Manual of the Botany of the Northern United States’ 2nd edition 1856 page 269. See also ‘American Journal of Science’ November 1862 page 419 and ‘Proceedings of the American Academy of Science’ October 14, 1862 page 53.) The corolla does not properly expand in the short- stamened form of these plants. Cnicus, Serratula, Eriophorum. In the Compositae, Cnicus palustris and acaulis are said by Sir J.E. Smith to exist as hermaphrodites and females, the former being the more frequent. With Serratula tinctoria a regular gradation may be followed from the hermaphrodite to the female form; in one of the latter plants the stamens were so tall that the anthers embraced the style as in the hermaphrodites, but they contained only a few grains of pollen, and these in an aborted condition; in another female, on the other hand, the anthers were much more reduced in size than is usual. Lastly, Dr. Dickie has shown that with Eriophorum angustifolium (Cyperaceae) hermaphrodite and female forms exist in Scotland and the Arctic regions, both of which yield seed. (7/22. Sir J.E. Smith ‘Transactions of the Linnean Society’ volume 13 page 599. Dr. Dickie ‘Journal of the Linnean Society Botany’ volume 9 1865 page 161.)]