310 



papilla deciduous and perithecium perforated. Sporidia (fide Berk.) 

 ellipsoid, hyaline, 14-15 fi long. 



On branches of Rhus ghtbra, Pennsylvania and New York. 



PHOMATOSPORA, Sace. 



F. Yen. Ser. II, p. 306. 



Perithecia minute, covered or erumpent, scattered, merabra- 

 naceous. Ostiolum papillate. Asci cylindric-filiform, aparaphysate. 

 Sporidia uniseriate, 8 in an ascus, hyaline, continuous, 2-nucleate. 

 Differs from Physalospora in the absence of paraphyses. 



P. Datiscse, Hark. Bull. Cal. Acad. Feb., 1884 : p. 43. 



Perithecia scattered, subepidermal. Ostiolum conical. Asei ob- 

 long or obclavate, 8-spored, 50-60 x 15-20 /A paraphyses none. Spo- 

 ridia oblong-oval, hyaline or minutely granular, with a small vacuole 

 at each end, 20-30x8-10 p. 



On dead stems of Datisca glomerata, California, 



P. argyrostigma, (Berk.) 



Spliczria argyrostigma, Berk. Hook. L,ond. Journ. Bot. VI, p. 326. 

 Phomatospora argyrostigma, Sacc. Syll. 1654, Cke. Syn. 4339. 



Perithecia widely scattered, rather small, depressed-globose, 

 astomous, covered by the epidermis. Spots epidermal, black, with a 

 white center, punctiform. Sporidia boat-shaped, hyaline. Plioma 

 dispersa, Berk., occurs on the opposite side of the leaf. 



On decaying leaves of Yucca Jilamentosa, Ohio. 



P. disnipta, (B. & C.) 



Sphtzria disrupta, B. & C. Grev. IV, p. 149. 

 Physalospora disrupta, Sacc. Sj^ll. 1672. 

 Phomatospora disrupta, Cke. Syu. 4345. 



Perithecia causing little swellings in the unaltered cuticle, which 

 are pierced in the center by the ostiola. Asci broad, obovate, with 

 two rows of hyaline, elliptical sporidia accompanied by brown, ellip- 

 tical, binucleate stylospores in different perithecia. 



On Smilax, South Carolina. 



P. Berkeley!, Sacc. F. Yen.. Ser. Ill, p. 306, F. Ital. tab. 605. 



Sphceria phomatospora, B. & Br. Ann. Nat. Hist. No. 647, tab. n, fig. 38. 

 Phomatospora Berkcleyi, Sacc. Syll. 1650, Cke. Syn. 4335. 



Perithecia minute, 140-200 //. diam., sphseroicl, immersed or 

 erumpent. Ostiolum subpapillate, punctiform ; nucleus with a rose- 



