74 
JOURNAL OF MYCOLOGY. 
[VOL. II, 
Effused, thin, glabrous, hyaline-fuscous, roughened with the crowded, 
dark-colored ostiola ; asci cylindrical, 8-spored ; sporidia elliptic-fusoid, 
15—20 X 4i—5 /^, uniseriate, continuous, greenish-hyaline. - 
* * Sporidia unisepiate. 
71. llYPOMYCES LATERITIUS, Fr. Oil the hyinenium of several species 
of Lactarius. iN^ew England (Murray & Sprague), Carolina, on Lacta- 
rius Indigo (Ravenel), Potsdam, X. Y. (Ellis). 
The mycelium forms a dense, white, felt-like stratum, which finally 
becomes more compact and of a pale brick color ; perithecia spherical or 
subovate, abundant, sunk in the stroma, except their slightly prominent, 
smooth, brownish ostiola ; asci cylindrical, 200—250 ij- long, spore-bear¬ 
ing part 112 X 6—7 ; sporidia uniseriate, elongate-fusiform, uniseptate, 
acuminate at each end, yellowish-hyaline, 18—20 x 4—41 //. 
72. IIy-pomyces auranttlts, Pers. On Stereiim and on the under 
side of logs. Carolina. (Ravenel.) 
Perithecia gregarious, subsphseroid, their apices projecting from 
the effused, orange-colored subiculum; asci cylindrical, 8-spored, 
110—140 X 6 P-\ sporidia uniseriate, uniseptate, fusoid, with the ends 
subapiculate, slightly curved, nearly smooth, 15—24 x .5—6 p-, hyaline. 
The white mold, ilipZoc/admm minus. Bon., is said to be itsconidial stage. 
73. I1y"pomy"Ces lactifluokum, Schw. Syn. Car., Xo. 34. On 
Lactarius, especially L. piperatus. Carolina (Ravenel), Pennsylvania 
(Everhart), Xew Jersey (Ellis). 
In the affected specimens of Lactarius, the gills are entirely obliter¬ 
ated, so that the hymenium of the Agaric presents an even, orange-col 
ored suface in which the subgJobose perithecia are thickly bedded with 
only their slightly prominent reddish ostiola visible; asci long and 
slender; sporidia uniseriate, fusiform, straight or slightly curved, rough, 
hyaline, 1-septate, cuspidate, pointed at the ends, 30—38 x 6—8 p-. The 
general appearance is much the same as that of the preceding species, 
but it differs in its larger, rough, warted sporidia and the absence of the 
felt-like mycelium. In decay, the color changes to a purplish red. 
74. llYPOMYCES ROSELLUS (A. & S.) Coiisp., p. 88, tab. 7, fig. 3. On 
various decaying fungi and on the ground or on leaves and rubbish near 
where fungi have decayed. Pennsylvania (Michener & Everhart), 
Plainfield, X. J. (Meschutt). 
Mycelium lax, effuse, consisting of loosely-woven threads, at first 
white and bearing conidia {Tricotfiecium agaricinum. Bon.), then deep 
rose-color or nearly blood-red ; perithecia deep rose-red, subspherical or 
ovoid, of variable size, buried in tlie stroma, excei>t the projecting, 
rather obtuse papilliform ostiolum ; asci linear, 150 x 6—7 p, with eight 
uniseriate, narrowly lanceolate, apiculate, straight or slightly curved, 
hyaline, 22—37 x 5—7 p sporidia, nucleate or spmiously 1—3-septate and 
often subinecpulateral. 
