Pyrenomycetse, Dothideacese, Phceophrag-mifle, Rhopographus. 857 



Sect. G. Plucophragmia?. 



HOMOSTEGIA Fuck. — Syll. II, p. 649, IX "p. 1049, XIV p. 683, 

 XVI p. 631. 



1. Homostegia lcucosticta Pat. in Duss, Enum. Champ. Guadel. 1903, 2977 

 p. 78. — Stromate orbiculari peridermio immerso, vix emergente, 

 nigro, supra plano, 5 mm. ostiolis late apertis albo-punctato ; 

 peritheciis ovoideis, numerosis, 130-160 ;i. diam., nucleo albo; ascis 

 cylindraceis, 60-80 * 12-14, octosporis, copiose filiformi-paraphy- 

 satis; sporidiis ovoideis, non constrictis, 10-14^5-7, diu incolori- 

 bus, demum fuligineis, 2-3-septatis, loculis guttulam lucidam con- 

 tinentibus. 



Hab. in truncis vetustis putridis, Sainte-Rose Guadalupse (Duss). 



RHOPOGRAPHUS Nitschke — Syll. II p. 647, XI p. 378, XVI p. 630. 



I. Eu-Rhopographus. 



1. Rhopographus Chamaemori E. Eostr. Rorske Ascom. 1904, p. 13 2978 

 (Vidensk. Skrift.). — Stromatibus innatis, gregariis vel confluen- 

 tibus, nigris, oblongis v. breve lineatis, depressis, minutis; loculis 

 immersis; ascis cylindraceis 100-115 « 10-12; sporidiis monosti- 

 chis, oblongo-ellipsoideis initio didymis, hyalinis, dein 3-septatis, 

 flavidis, 18-20 « 7-10, syepe utrinque hyalino-appencliculatis. 



Ilab. in caulibus Rubi Cham;i3mori, Gjelfos Norvegioe. 



2. Rhopographus caulincola Oud. Nederl. Kruidk. Arch. 1902, II, 2979 

 p. 712. — Stromatibus sub epidermide atrata et nitida nidulantibus . 

 ex loculis minutis compositis, parenchymaticis impellucidis, longi- 

 tudinaliter dispositis 2-3 cm. longis 0,5-1 cm. latis, subinde con- 

 fluentibus, primo levibus, dein colliculosis, loculis inaequaliter 

 dispositis 0,5-1 mm. diam., partim ascigeris, partim pycnidicis; 

 ascis cylindraceis 80-100^7. spurie paraphvsatis, octosporis; spori- 

 diis fusoideis, curvis, utrinquo acutis, 3-septatis, non constrictis 

 23^3,5 pallide olivaceis; sporulis orbicularibus 2-2,3 ;x. diam. 

 melleis. 



Hab. in caule Umbellifera; cujusdam indet., Valkenberg Hol- 

 landku (.1. Rick.). 

 3 Rhopographus Bakeri Earle in New York Bot. Gard. 1902, p. 350. oqso 

 — Stromatibus subsuperflcialibus, interdum confiuentibus, nigris 



