597 



nodes of the stem, 5-25 mm. long, very fragile, black, nearly smooth. 

 Ascigerous cells numerous, buried in the stroma, white. Asci cylin- 

 drical, subsessile, 70-80 x 6-10 p, 8-spored. Sporidia uniseriate, 

 elHpsoicl or ovoid, continuous, hyaline, 12-20 x 4-7 fx. Paraphyses 

 filiform. 



On stems of Linncea borealis, White Mountains, N. H. (Farlow). 



Mr. Kelsey finds, on the same host, in Montana, the minute, scat- 

 tered stromata of some Dothideaceous fungus on the upper side of 

 the leaves but entirely sterile. 



Ph. coccodes, (Lev.) 



Sphceria coccodes, I,ev. Ann. Sci, Nat. Ill, (1845) p. 50. 

 Dothidea Cubensis, Berk, (fide Cooke). 

 Physalospora coccodes, Sace. Syll. 1717. 

 Dothidea coccodes, Cke. Syn. 1240. 

 Exsicc. EH. & Evrht. N. A. F. 2d Ser. 1950. 



Stromata scattered, amphigenous, flattened-pulvinate, \-\\ mm. 

 diam., black, roughened by the obtuse, prominent ostiola so as to 

 appear under the lens minutely tuberculate. Ascigerous cells sub- 

 ovate, immersed, white inside, about 200 p. diam., not crowded. Asci 

 clavate, stipitate, 85-90 x 15 p, paraphysate, 8-spored. Sporidia over- 

 lapping-uniseriate, elliptical (sometimes subinequilateral,) hyaline at 

 first, becoming yellowish, 12-16 x 6-8 p, continuous. 



On leaves* of Olea Americana, Florida (Calkins). 



This is given as D. coccodes (Lev.) on the authority of Dr. Cooke. 

 It does not agree well with Saccardo's description of Physalospora 

 coccodes, though the same reference to Sci. Nat. is given by Berk, in 

 his Cuban Fungi under Dothidea coccodes, Lev., as that given by 

 Sacc. under Physalospora coccodes. At any rate, the specc. issued 

 in N. A. F. can not be Physalospora, having the characteristic cells 

 of. the Dothideaceoe immersed in the stroma. 



Ph. Trifolii, (Pers.) 



Sph&ria Trifolii, Pers. Syn. p. 30. 

 Dothidea Trifolii, Fr. Summa, Veg. Scand. p. 387. 

 Phyllachora Trifolii, Fekl. Symb. p. 218. 

 Exsicc. Fckl. F. Rh. 1022. Rab. Herb. Mycol. 657. id. F. Eur. 1331. Kze. F. Sel. 270. 

 Thum. M. U. 2269. Sydow, M. March. 697. Unhart F. Hung. 375. 



Stromata hypophyllous, gregarious, collected in small, mostly 

 elongated groups extending along the nerves of the leaf, black, sub- 

 globose or tuberculiform, prominent, often confluent. Sporidia (sec. 

 Cke. in Grev. XIII, p. 63) elliptical, hyaline, continuous, 20 x 10 p.. 



On leaves of Trifolium repens, Ohio (Morgan), on Trifoliurru 

 New York (Peck). 



The specc. we have seen are immature or sterile. 



