4 NOTICES OF NORTH AMEHICAN FUNGI. 



Hypocenia. B.^ C. — Peritliecia crassa ohtiisissima, cellulam imi- 

 cam semiorbicularem includentia ; sporis endochromate iitnuq[ue 

 retractis. 



423 (bis). Hypocenia obtusa. B.&C. — On branches of trees. Car. 

 Inf. No. 3840. Pennsylvania, Michener. No. 3926. 



Perithecia erumpent single or two together, surrounded at the 

 base by the cuticle, very obtuse ; vpall thick, cellular, pale internally, 

 seniiorbicular, with a cell of the same form at the base ; spores 

 shortly fusiform, -0008 long, about ^th as much wide ; endochrome 

 ntracted to either extremity, pale, reddish-brown when seen within 

 the perithecium. 



424. Hendersonia eximia. B. & C. — Peritheciis congestis seiia- 

 tis ; sporis ntrinquc obtusis biseptatis. 



On exposed wood of Carya. Car. Inf. No. 5607. 



Perithecia raising the wood into white elongated patches; spores 

 obtuse, biseptate, 001 --0012 long, nearly twice as broad as long. 

 In the same perithecium uniseptate spores also occur. 



424 (bis). Hendersonia sphserosperma. B. <L- C. — Pustulis epider- 

 mide cinctis, phiricellulosis ; sporis spha^ricis long pedicellatis, e 

 septis obliquis horizontalibusqae. 



On branches of ash. Pennsylvania, Michener. No. 4882. 



Pustules surrounded by the cuticle containnig several cells ; spores 

 spherical, with at first four divisions, then variously septate. The 

 spores are similar to those of H. oreades, B. & Br., on oak leaves. 



425. Hendersonia pauciseptata. B. <h C. — Peritheciis applanatis 

 basi epidermide cinctis ; sporis oblongis triseptatis utrinque obtusis. 



On Liriodendvon. Car. Inf. No. 2148. On Luurus benzoin, 

 Pennsylvania, Michener. No. 4183. On Populus dilitaia. Penn- 

 sylvania, Michener. No. 4244, On Lagerstramia. Car. Inf. 

 No. 4994. 



Perithecia flattened above, surrounded at the base by the cuticle, 

 spores oblong, obtuse at either end, sometimes slightly attenuated 

 below, •0005-"00028 long, about a third as much broad, triseptate, 

 with a distinct hyaline border, variously pedicellate. In 4244 the 

 spores are large. In No. 2148 the pedicels spring from a basal 

 network. No. 850. Car. Sup. on Rhus glahia, appears to be a 

 variety. I cannot distinguish Car. Sup. on ash. No. 835. 



425 (bis). Hendersonia longipes. B. & C. — Peritheciis demum 

 liberatis collapsis sporis oblongis ti-iseptatis, pedicellis longissimis. 



On branches of vine. Car. Sup. No. 861. On rose. Car. 

 Sup. No. 880 seems to be the same. 



Perithecia at length free, collapsed ; spores oblong, narrow, tri- 

 septate, seated on very long, extremely slender pedicels, which 

 spring from decumbent septate threads. 



426. Hendersonia variabilis. B. d: C. — Maculis orbicularibus 

 pallidis ; peritheciis punctiformibus epidei'mide tectis ; sporis 

 utrinque oblusis triseptatis variis. 



