[ 



I tin 



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658 



base, ratlicr small, 2-4 miu. broad and tliit-k, laillalo, densely aiva'A- 

 lions and often confluent, assuniinii' various shapes Croin nuitnal pics- 

 suro; when standiiij^ sinjiiy, reu'iilai', convex, covered with a smooth. 

 liard stratum. Perithecia l>ui'ied, ovate. 



On oak l)ranelics; rare, JJethlehem, Pa. (Schw,). 



BOIil'XIA, Xifsclike. 



I'yreii. Ocrm. p. 26 (as ii suliK'^tins). 



' Stroma sujieiticial, elTused. Pei-ithecia deeply immei'sed in the 

 stroma, with elon,<>ated necks and umbilicate ostiola. Asci cylindricid, 

 S-spored. })ara])hysatc. Sjioridia ovoid continuous, brown. 



B. Tiibiilina, (Alb. & Seiiw.) 



Spliceiia Tiihulina. A. & S. Coiisp. N'isk. p. 6, tab. IV, fiR. 4. 

 Hypoxyl'n Tiibulina, Fr. Suinina Veg. Sc. p. 3.S3, 

 liolinia 7;(/>.'i/;h(J, Sacc. SyU. 1332 Cke. Syii. S07. 



Stroma eifused, determinate, oblon«j or oval, superficially atlnatc, 

 when on wood still sound and liai'd, l)ut with the l)ase more or less 

 immersed where the wood is moi-e decayed and softer, surl'ace ini- 

 oven, with variously-shaped depi'C'^sions and prominences, or in the 

 smaller stromata, flat pulvinate and smooth, at first of a dirty-ferrni>i- 

 nous color, finally black, fiauile, margin icjiaiul. Perithecia veiy 

 large, monosticlioi'>. densely crowded, ovate or angular from mutual 

 pressure, gradually attenuated into long necks, with the jie'rlbratcd 

 ostiola not ])romincnt, and giving the stirface of the stroma a jioroiis 

 appearance. Asci cylindrical, long-jiedicellate, 8-spored, j). sp. 3()-45 

 X 5 M. Sjjoridia ol»li(iuely monostichous, small (fi-7x3-4//), ovate, 

 ends ol)tusely rounded, becoming nearly l)lack. 



On dead Juglann, Carolina and Pennsylvania (Schw.). 



The stroma is 2-4 inches or n)oiv long, li-2 inches or more 

 wide, and \-^ an inch thick, with the sides abrupt. When old and 

 l)roken down, it resend)Ies a Tubulina, hence the specific name. 



POROXIA, Willdeiiow. 



Flor. Berol. Protlr. p. 400 



Stroma carnosc-suberose, at first clavatc, then cup-shaped or dis- 

 coid', stipitate or subsessile, light-colored. Perithecia immersed in the 

 upper, discoid surface of the stroma, carbonaceous, black. Asci cylin- 

 drical, 8 spored. Sporidia ellipsoid, brown, with a hyaline, gelatinous 

 envelope. Stroma at first clothed with the conidial liymeniuiii. 

 Fimicolous. 



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