182 ‘THE JOURNAL OF BOTANY 
to me, weaken the case materially. Such an arrangement ro- 
vides that at least some of the ovules will be fertilized with 
u e ; 
teriorating influence of self-pollination is very marked 
ze pli 
Zea has been hybridized. Euchlena, also, is supposedly mono- 
typic. It is now generally considered that the five “types” or 
“varieties” of Maize, respectively named indurata, indentata, 
species, of which the original wild type is unknown. It is certain 
that they frequently cross and have produced many crossbred 
forms, several of which are now “fixed.” It is possible that our 
five types of Zea Mays are really the product of hybridization, 
of which the original parents have been, perhaps, entirely lost. 
OBSERVATIONS ON FOSSOMBRONIA. 
‘By A. 8. Horne, B.Sc., F.G.S. 
In 1869 E. M. Holmes + recorded F. pusilla for Devonshire. 
In 1875 Mitten found a specimen between Parracombe and Braun- 
ton, in North Devon, which has since been described as a new 
species, i.e. F', Mitteni.t Curnow § states that F. angulosa occurs 
near Penzance, in Cornwall. 
In 1904 I found small quantities of Fossombronia on a moor- 
land locally known as Woodbury Common, in East Devon, but 
was unable to’ identify the species. On August 15th, 1906, I 
found a large number of mature plants, and, in a particular spot 
* Mém. de V Herb. Boiss. 1900, p- 400. 
t Scale Mosses of Devon and Cormeall. 
} Journ. Bot. 1898, p. 44. 
§ Hepatice of West Cornwall, 
