133 
STUDIES IN ENTOMOGENOUS FUNGI. 
THE NECTRIAE PARASITIC ON SCALE INSECTS. 
(continued from p. 132) LIBRARY 
By T. Petch, B.A., B.Sc. NEW YORS 
BOTANICAL 
NECTRIA. 
* a bf 
Nectria diploa B. and C., 
This species was described by Berkeley and Curtis in Jour. 
Linn. Soc. x (1868), p. 378, as ‘“‘Caespitosa; peritheciis auran- 
tiacis furfuraceis; sporidiis biseriatis fusiformibus, 2—4 nucleatis 
(606). On bark. Hab. Car. Inf., No. 4029. Sporidia -oo12—-o001 
inch long, :00035 wide.’’ The specimens were from Cuba, and, 
as explained by Berkeley, in the introduction to Fungi Cubenses, 
the places cited under “‘ Habitat” are extra-Cuban localities 
from which he believed he had the same species. 
The type in Herb. Kew is marked 606; it is a caespitose 
Nectria, on a.scale insect, apparently Aspidiotus, and has a 
Pseudomicrocera conidial stage. Specimens distributed in Fungi 
Cubenses Wrightiani, No. 767, are the same species, as regards 
the examples in Herb. Kew and Herb. British Museum. Von 
Hohnel (in Herb. Kew) states that Nectria diploa B. and C. is 
the same as Nectria laeticolor B. and C., but that is not the case. 
The specimens from South Carolina, No. 4029, are a totally 
different species. These were subsequently described by 
Berkeley (Grevillea, Iv (1875), p. 46) as Nectrvia diploa B. and C. 
var. minuta, on some Sphaeria on alder, Car. Inf., No. 4029, but 
they have no relationship or resemblance to the Cuban species. 
The perithecia are minute, conical, about 160 high and 
120-200 w diameter, blood red, smooth, translucent, collapsing 
laterally, with a papillate apex; the asci are sessile, narrow oval, 
about 70 x 12m, and the ascospores oval or subcymbiform, 
22-24 x 8-10. According to von Hohnel in Herb. Kew, this 
is the same as Nectria guaranitica Speg. There are specimens 
in Herb. British Museum, “‘Nectria diploa B. and C., 55, ad 
corticem Alnt,’’ marked by Broome “‘ Ravenel, (spore) about 
0-0012 inch long,” with a drawing of the spore; “‘ Nectria diploa 
B. and C., Cort. Alni, Society Hill, S.C., M.A.C.,”” with drawing 
of spore “‘-oor inch long”; and “ Nectria diploa B. and C., coll. 
M. A. Curtis, Distrib. W. G. Farlow”; while Herb. Kew has 
“4029, on Alnus, Car. Inf.’’ All these appear to be the same, 
but not Nectria diploa. This species is parasitic on lichens or 
Pyrenomycetae. 
Seaver (Mycologia, I, p. 190) places Nectria diploa in Creo- 
M.S. 9 
