1918] Blake,— Notes on the Clayton Herbarium 69 
tenis was proposed for G. pedicularia and two very doubtfully distinct 
species, and Agalinis (“remarkable flax”) for the purple-flowered 
species of the G. purpurea alliance. The distinctive characters of 
Aureolaria and Agalinis, the two genera retained by Pennell for the 
Coastal Plain members of the genus “Gerardia,” are thus stated by 
him (l. c. 404-5). 
“Corolla yellow. Anther-sacs parallel, awned at base. Capsule 
acute to acuminate. Seeds wingless or winged...3. Awureolaria. 
“Corolla pink or purple. Anther-sacs more or less divergent, 
obtuse to mucronate-awned at base. Capsule rounded at apex. 
IRR or, sn. es nae be a eee 4. Agalinis.” 
These characters, it must be confessed, are much more impressive 
as thus stated than as shown by the specimens themselves. While 
Fics. 6-8.— Fig. 6. ‘‘Gerardia”’ pedicularia L. (‘‘ Aureolaria”.— Rumford, Maine, 1889. 
Parlin). Fig.7. “G.” peduncularis Benth. (“Agalinis ’’— Chiapas, Ghiesbreght 685). Fig. 8, 
“G.” tenuifolia Vahl (** Agalinis ’’. — Orange, Connecticut, 12 Sept., 1900, Bissell).— All X 5. 
the species of the G. virginica group have obviously awned anthers, 
with awns 4—4 the length of the sacs, there is a very obvious mucro at 
the base of the cells in many of the purple-flowered species (Agalinis), 
and in G. peduncularis Benth., a purple-flowered Mexican species with 
the habit of G. purpurea, which has been referred by Dr. Pennell in 
mss. notes in the Gray Herbarium to Agalinis, the short awns or long 
mucros, as they may indifferently be called, are precisely intermediate 
between typical ones of the two groups, and almost identical in relative 
length with those of G. grandiflora, a close ally of G. virginica. The 
unsatisfactory character of the anther-appendages as a means of 
distinction between the two groups is indicated by figures 6-8, which, 
while perhaps not strictly accurate in respect to the degree of diver- 
gence of the anther-cells, since they are drawn from dried specimens 
