140 ERYTHEA. 
excellent paper on this genus, distinguish three kinds of 
corolla appendages: (a) scales with free tips; (b) scales 
adnate their whole length; and (c) hairy lines. Of the 
three species described in this paper, two have appendages 
of the first kind, with distinctly free tips. The other species 
has very narrow and very hairy scales and was probably 
included by Fischer and Meyer in the last class. 
Hither of the original descriptions of Nemophila Menziesii 
and of N. insignis would apply equally well to either of our 
two common large, blue Nemophilas. Hooker and Arnott 
who considered N. insignis a variety of N. Menziesii note no 
difference but the relative size of corolla and calyx. Now 
the form with reduced or abortive anthers has almost con- 
stantly flowers of about half the sizo of those of the perfect 
form. Is it not possible that Hooker and Arnott had these 
two forms before them when they united the species? How- 
ever this may be, the descriptions proper are practically 
identical and can, therefore, be applied but to one plant. In 
a note Hooker and Arnott state that the leaves of N. Men- 
zesu are exactly those of N. parviflora, which if constantly 
true, would exclude the name from use for either of the two 
plants to which it has been applied in recent works. It 
seems impossible to determine which plant received the 
name of N. Menziesii on account of the meagreness of the 
description. The type specimen is of little use, as Prof. 
Greene, who has lately seen it, states that it is without 
flowers and, therefore, impossible of determination. N. in- 
signis, on the contrary, was figured in the Botanical Register 
in 1834, undoubtedly from the same plants from which 
Bentham drew up his description. From this there can be 
little doubt to which species this name was applied, 
though the form of the corolla scales is not very clearly 
brought out. A somewhat incomplete specimen of a large, 
blue-flowered Nemophila collected by Mr. Burtt Davy on Loma 
Prieta has leaves very closely resembling those of what seems 
to be the type of N. parviflora. The flowers are very hairy 
at the base of the corolla and apparently without scales. 
