724 General Notes. 
Pirottza seem necessary, differing from Mollisia only in its septate 
hairs scattered over the outer surface of the excipulum. . 
From the section Hyalodidymz of Pezizez, Bisporella and Lan- 
zia might be removed to Tapesia, Niptera to Mollisia and 
Helotiella taken back to Helotium, and under Stictez, Propoli- 
dium might be left under Propolis. To all these changes 
can be no valid objection, except tl iseptate sporidia, and itwould 
seem better to disregard this character than to remove these species 
from that place in the series where all their other characters would 
naturally seem to place them. For the same reason it would be 
better not to separate Hamatomyxa from Hamatomyces. 
+ 
y 
ese suggestions are made merely as the expression of my — 
opinion and not in any dictatorial spirit, knowing that each m 
do his work in his own way. Meanwhile, thanks are due to the 
learned mycologist of Padua for having condensed and made ac- 
cessible the scattered literature of the Pyrenomycetes in the two 
volumes of the Sylloge already published, and it is cegtain that 
the succeeding volumes will meet with a ready welcome.—/. 2. 
Ellis, Newfield, N. J., May 13, 1884. 
tinged with purple, burst from the small bud, showing the am 
as a mere edging near the border of the calyx. Later, at : 
the petals grow more rapidly and cover the stamens as 6 
if Kax 
Fig. 1. Fig. 2. 
Fic. 1.—Napea dioica, male flower. Fic. 2.—Female flov 
cium of the same, showing the sterile filaments (/) surrounding the styles, 
nectaries (72) at their base. 
*) from the 
2 4 j . flower. There 
bud in this way, but wait for the expansion of the flo usually 
Fig. 3- 
flower. FIG. 3—6 
sho the 
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ia!) 
fS] 
w 
2 
A 
=} 
Neg 
a 
a 
wn 
T 
e+ 
bs w 
om 
x | 
oO 
D 
oO 
ie) 
je) 
as 
©, 
wa 
5 
re 
oOo 
; 
g 
B 
organs being ineffective. The plants, as Sal 
sexes separated so that insect agency becomes eee 
fertilization of this species. I have noticed a eee! 
effecting this process, but the infrequency with whic’ $ together 
are carried out, and the few individuals usually oun one 
diceciousness of the flowers, account for the, hborhood- 
with th 
e . 
of this plant to compete with ordinary plants in its nelg 
