28 Transactions British Mycological Society. 
specimens were found, one conidial, and the other perithecial, 
but immature. From the herbarium collections, this species 
does not appear to have been found again in Britain. Prior to 
that, in 1834, Schweinitz had described Sphaeria clavulata in 
his Synopsis of North American fungi*. In 1869, when Berkeley 
and Curtis enumerated the fungi of Cubaf, they listed Sphaeria 
clavulata as a Xylaria, adding the extra-Cuban localities, North 
America and Venezuela. Subsequently, Peck stated that 
Schweinitz’ Sphaeria clavulata was a Torrubta}, or, as we should 
now call it, a Cordyceps, and Ellis and Everhart§ state that it 
is quite certain that the Cordyceps distributed by Peck is the 
genuine Sphaeria clavulata. It has been collected in America 
on several occasions, and is parasitic on Lecanium. Cooke|| 
considered that Cordyceps pistillariaeformis B. and Br. is 
identical with Cordyceps clavulata (Schw.) E. and E., and 
Massee, Ann. Bot. 1x (1895), p. 22, agreed with him. That view 
is most probably correct, but one would wish for further material 
of the British species before coming to a final decision. The 
herbarium specimens show some differences, which may how- 
ever prove to be intraspecific. Berkeley’s specimen of Xylaria 
clavulata from Cuba is a very immature Xylaria, and has little 
resemblance to Cordyceps clavulata. 
The other species of Cordyceps, said to occur on a scale insect, 
is Cordyceps coccigena (Tul.) Sacc.{], described and figured by 
the Tulasnes. It was collected in New Guinea, and was said to 
be growing on a coccus. As in the case of so many collections 
of these entomogenous fungi it was immature. However, from 
the excellent illustration, one is led to doubt the statement that 
it was growing on a coccus. The insect is large for a scale insect, 
and the figure shows that the body consisted of at least two 
distinct segments. Two clavae, with depressed globose heads, 
arise from the foremost segment. Except that the anterior 
segment is covered with mycelium, the illustration is good for 
Cordyceps dipterigena B. and Br., and I would hazard the 
suggestion that Cordyceps coccigena really grew on a fly. 
In the case of the species which have already been mentioned, 
there is usually no doubt that the fungus is growing on a scale 
insect. It does not obliterate the insect. It generally grows out 
from the insect and produces its conidiophores at the margin 
of the scale and its perithecia in the same position or on the 
top of the scale. In Podonectria, there is a byssoid stroma 
* Trans. American Philos. Soc., Iv (1834), pp. 141-316. 
+ Journ. Linn. Soc., x (1869), p. 380. 
~ 28th Rep. New York State Museum. 
§ North American Pyrenomycetes. 
|| Vegetable Wasps and Plant Worms, 1892. 
4] Selecta Fungorum Carpologia, 111, p. 19, Tab. I, fig. ro. 
