8 ARKIV FÖR BOTANIK. BAND O. NIO 7. 



Pyrenomycetinae. 



Phyllactiiiia. 



P. corylea (Pers.) Karst. 



Hab.: Paraguay. Trinidad pr. Asuncion in foliis arboris 

 Terebinthinearum, 18 25 /t93; N:o 391. (Malme) — Cfr. Salmon 

 Monogr. Erysiph. Mem. Torr. Bot. Club. IX p. 224 seq. 1900. 



Uncinula. 



U. polychceta (B. et C.) Trac. et Gall. 



Hab.: Bolivia. Tarija, in foliis Prosopidis; N:o 281. - 

 Salmon in lit. : »I do not find that this differs in any way 

 from typical U. polychceta, except in the amphigenous habit 

 of the mycelium. a character which I consider of little 



importance». 



Nectria. 



N. coccineo-nigra Starb, no v. sp. 



Stromata immersa, erumpentia, pulvinatulo-applanata, 

 basi paullum contracta, gregaria, interdum confluentia. intus 

 aurantiaco-lutea, acervulas orbiculatim vel polygone deter - 

 minatas efficientia, 1 — 3 mm. diam. Perithecia superficialia. 

 2 — 50 densissime aggregata. plane fere inter se libera vel basi 

 confluentia. sphaarioidea vel paullum ovoidea. pulcherrime 

 T . erruculosa. primo aurantiaco-coccinea. distincte obscurius 

 fere nigro-papillata. deinde rubro-fuscescentia vel nigro-pur- 

 purea, 250 — 300 ;j. diam., textura hypocreacea. Asci octo- 

 spori, forma maxime varia, fusiformes vel cylindraceo-clavati 

 vel sporidiis conglobatis, oblonsrati, 57 — 65 x 10—12 [).. Spo- 

 ridia mono — disticha, interdum conglobata, ellipsoidea. medio 

 septata, non vel vix constricta episporio crasso. distincte 

 oblique et undulatim striate, loculis grande guttulatis. 12.:» 

 -15 x 6 — 7.:. [J.. Paraphyses nulla? (?). -- Hab.: Bolivia, Gran 

 Chaco, Tatarenda in ramulis ariclis, 19' , 02; N:o 418. 19- :i /:02: 

 X:o 348. -- N. hematocJiroma SpéG. quam maxime affinis- 

 species nostra differt tarnen ostiolis, situ et modis sporidiorum: 

 inter Nectrias sporidiis striatis bene distincta. 



