78 BOTANICAL GAZETTE [JULY 
the beach flora. In the salt marshes is found the most halophytic flora. 
Several plants have hygrophilous characters, as canals or lacunae. 
n conclusion, the coastal flora is composed of xerophilous and halophi- 
lous members, showing points of contact; plants of the xerophilous flora 
ave moderately xerophilous characters, ag as epidermal protections slightly 
de eloped plants of the halophilous flora exhibit succulency of leaves and 
of stem and water-tissues; characters in common to the two are isolaterality 
of oe and compact structure of the mesoph IL. 
he author objects to ScuimpEr’s placing halophytes among xerophytes 
and says: “‘The cape iasiagitl results from confusion. between the two different 
ities. The fact that there are succulent plants outside the coast simply proves 
that succulency may be related to other factors of the soil besides salt, but its 
frequency in plants of salty earths shows that there exists a certain relation 
fy 
the toxic action of salt, or that the appearance of succulent plants on the coast 
is due to lack of competition there, he thinks insufficient, and concludes that 
a flora as special as that of the salt marsh should be considered as halophilous 
in the proper sense of the word. The author admits that succulency may be 
due to other factors than salt in the soil, but does not make it clear why he 
objects to considering that “physiologically dry” soil and really dry soil may 
occasion the same structure. ScHIMPER’s argument seems to us to stand. 
—A. M. STARR. 
Inheritance of flower-form and color in Digitalis—A familiar garden 
variety of Digitalis has the central axis terminated by a peloric flower. 
KEEBLE, PELLEw, and Jones* find that this form is a Mendelian recessive to 
the typical form, and that, as might be expected, the inheritance is the same 
whether the seeds are taken from the peloric flower or the normal zygomorphic 
flowers of the same plant. The flower-color is referred to three pairs of allelo- 
morphs: Mm, a magenta factor; Dd, a darkener which changes the magenta 
to purple; and Ww, a dominant white factor which removes the effect of M 
except in the small spots which occur on the corollas of all Digitalis. When M 
is present these spots are red, and when absent they are yellow. 
Miss SAUNDERS" has studied the inheritance of an interesting form of 
5s KeEBLE, F., Perrew, Miss C., and Jones, W. N., The inheritance of peloria 
and Riacaie' in foxglove (Digitalis purpurea). New Piveslogiat 9:68-77. fig. I. 
— 
UNDERS, Miss E. R., On inheritance of a mutation in the common foxglove 
Pate purpurea). New Piytobosiet 10:47-63. pl. 1. figs. 12. 191 
