Pyrenomycet®, Dothideacefe, PhragrriosporsB, Homostegia. 683 



ginoso, duobus circulis concentricis circumdato^ intemo ferrugineo, 

 externo subrubro; loculis 10-16; ascis 8-sporis, fusoideis v. clavi- 

 formibus, sessilibus, 90-96 « 12-15; parapliysibus flexuosis, guttu- 

 latis, haud bene distinctis; sporidiis cylindraceo-fusoideis, hyalinis 

 V. cHorinis, primo continuis, deinde triseptatis, 10-14 «3'/,; sper- 

 mogoniis cylindraceo-fusoideis, rectis, continuis, hyalinis, 7,2-7,5 ^ 

 2,5, in acervulum ceraceum ilavum exsilientibus. 

 Hab. in foliis plantse indeterminatas, Costa-Eica. 



Sect. 4. Phragmosporae. 



DANGEARDIELLA Sacc. et Syd. noy. gen, (Etym. a P. A. Dangeabd, 

 de fangorum bio-morphologia meritissimo) MonograpM sp. Schrot. 

 — A Monographo differt imprimis sporidiis elongatis, pluri-(6-8-) 

 cellularibus. 



1. Dangeardieila macrospora (Sehrot.) Sacc. et Syd. Monographus ma- 26I6 

 crosporus Schroet. Kryptog. Flora v. SchlesieD, 1897, p. 477. — 

 Stromatibus lanc^olatis v. eliiptico-lirelljeforraibus, epidermide le- 

 ctis, atro-nitidis ; peritheciis paucis, globosis; ascis cyJiridraceis, 

 120-150 'j? 15-17, apice rotundatis, in stipitem brevem acutafcis, 

 octosporis; sporidiis distichis, fusiformibus, curvulis v. vermicula- 

 ribus, 66-75 ^ 8-10, utrinqne valde angustatis, sed obtusis, medio 

 leniter constrictis. 6-8-celIuIaribus, hyalinis. 



Hab. in stipitibus emortuis Athyrii alpastris in SiJesia, 



HOMOSTEGIA Fuck. — Syll. II, p. 649, IX, p. 1049. 



1. Homostegia rhoina Ell et Ev. Erythea 1897, p. 5. — Stroma- 2617 

 tibus epiphyllis, sphferoideis, gregariis, '/^-'/s mm. diara,, promi- 

 nentibus, sed epidermide nigrificata, apice rupta arcte tectis; cel- 

 iulis ascigeris 2-5 in quoque stromate, spbaeroideis, intus albis, 



• 80-120 u. diam.; ascis oblongo-clavatis, breve sfcipitatis, 60 70 ^ 

 12-14; paraphysibus filiformibus, numerosis, ssepe supra curvulis; 



• sporidiis distichis, oblongo-fusoideis, 4-^septatis, ad septum me- 

 dium constrictis, hyalinis, subobtusis, 15-18 « 3 '/,r4 '/^. 



Hab. in foliis emortuis Ehois integrif oliae, socio Didymo- 

 sporio rkoino, Oalifornia. 



2. Homostegia CQaclnadlsca Ell. et Ev. Proo. Acad. Philad. 1835, 26I8 

 p. 427. — Stromatibus erumpenti-saperficialibus, discoideo-puivi- 

 natjs, '/3-'/^ mm. diam., supra G-8-ies perforatis, sed nuJlo promi- 



