136 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
may generally be found later as characteristic organs between the 
basidia.” 
So far as can be judged from the inadequate descriptions, the oval 
spores mentioned by Fuckel (’71) as occurring on the hairs of Solenia 
caulium, and the ovoid colorless bodies which Patouillard (’89b) 
found terminating the hairs on young cups of Solenia anomala, may 
be of similar nature to the spores reported in Stereum hirsutum. 
Unfortunately, no figures are given and the spores were not germinated. 
The hymenium of Stereum disciforme Fr., according to Patouillard 
(’94b), contains cells larger than paraphyses, but smaller than basidia, 
each bearing terminally either a single conidium, or two conidia 
separated by a constriction. These are produced all over the hymen¬ 
ium and even mingled with the marginal hairs. Similar conidia, 
produced in simple or branched chains, were seen by Richon (’77) 
and Patouillard (’87a) in the hymenium of Corticium amorphum Fr. 
The nature of these alleged conidia cannot be definitely determined 
from the imperfect descriptions and illustrations, but they are appa- , 
rently moniliform paraphyses, or chlamydospores formed in modified 
basidia (cf. Pterula multifida, p. 137, Hydnum, p. 137, Fomes bam- 
businus, p. 142). 
The hymenium of Corticium marchandii Pat. contains a few 
basidia bearing small colorless basidiospores, but is mainly composed 
of stout nodulose conidiophores (Patouillard, ’83a), each bearing 
terminally a single large colored body which Patouillard calls a con¬ 
idium (cf. Hypochnus anthochrous, p. 133). 
Massee (^O-^l) speaks of “large elliptical gonidia produced singly 
on thick gonidiophores ” in Aleurodiscus (Corticium) oakesii, but 
Peirce (’90) did not see these large gonidia, and thinks that Massee 
must have been misled by the moniliform paraphyses of this species, 
or by occasional monosporic basidia in which the other spores have 
been aborted. Peirce found that “when the plant is not producing 
basidial spores, that is, when it is young or after basidial spores have 
ceased to form, the bristles of the paraphyses often bear at their tips 
clear, highly refringent, colorless, spherical bodies about 0.82 y in 
diameter, which are doubtless conidial spores.” He did not germi¬ 
nate these tiny conidia. 
Clavariaceae. — Oidia of the type seen in many of the Agaricaceae 
occurred in Brefeld’s (’77) cultures of species of Typhula; but the 
majority of the members of this family have never been studied in 
cultures and nothing is known of the character of the young mycelia. 
