HYPOXYLA. ^33 



dinis Phiagmitis in Jurasse (cl. Cbaillet). — Xyloina arundinaceniu DC. fl. 

 fr 5. p. 162. 



VIII. RHYTISMA Pries in vet. ac handl. 1819. p. 104 j syst. mjc. p. 564. Ad. 

 Brongn. class. champ, p. 97. — Placantium Ehrenb. — Xyloiuatis sp. DC. 



Receptacula simplicia primo clausa demùm in rimas flexuosas trans- 

 versales irregularesve rumpenlia a nucleo discreta ; nucleus compositus 

 submultilocularis receptaculo rupto sistens hymenium placentseforme 

 carnosum subpersistens ; thecae erectse fixae paraphysibus immixtee spo- 

 rulis uniserialibus refertse. — Sessilia subinnata. 



1. R. AnuromfDjî: (Fries 1. c.) epiphyllnra inuatum oblongum costato-rngo- 

 suiii nitidam, disco cinereo fuligineo, inlùs albain. — Ad folia viva Andro- 

 medae polifoliœ. — Xyloma Androraedae Pers. DC. fl. fr. 5. p. i55 ; mem. 

 mns. 3. t. 3. f. i3. Mong. et Nestl. exs. n. 176. — Primo adinodum tenue dein 

 crassiusculuiu. 



a. R. Salicjnum (Fries 1. o. ) iunatum crassuin tuberculosum subnitens squa- 

 moso-ruinpens intùs album, disco lutescente stramineo. — Ad folia SalIcDm 

 variamm. — Xyloma Salicinum Pers. disp. p. 5. t. 2. f. 4. Nées syst. f. 20. 

 Mong. et Nestl. vog. n. 175. Grev. crypt. fl. t. iiS.f. 2. X. lencocreas DC. fl. 

 fr. 2, p. 3o3 et 5. p. x54 j mem. mns. 3. t. 3. f. 5. 



yê. umbonata (Alb. et Schw. ) minus subrotnndum nmbouatuiii. Xyl- 



nmbonatum Hoppe. 



3. R. AcERiwuM (Fries 1. c. ) epiphyllum rugosnm inuatum macnljeforme 



conflnens intùs albidnm, in labia flesnosa dehiscens , disco pallescente. 



Ad folia Aceris. — Xyloma Acerinum Pers. DC. fl. fr. 2. p. 3o2 ; mem. mus. 3. 

 t. 3. f.g. Nées syst. f. 21. Grev. crypt. fl. t. 118. f. 1. Mucor granulosus Bull, 

 cbamp. t. 5o4. f. i3. — In aetate juvenili snbcontiguum sed in foliis exsic- 

 catis tubercula prominent in plagas interruptas rima longitudinali sed valdè 

 irregulari et ramosâ rupta. 



fi . Pseudoplatcmi (Fries), tenuius , folio circum flavesccnte. — Xyloma 

 Pseudoplatani DC. fl. fr. 5. p. i52. Mong. et Nestl. vo^. n. 77. 



4. R. rcNCTATUM (Fries 1. c.) innatnm confertum angulato-subrotundum rn- 

 gosum atro-nitens frustulatlin rumpens intùs fusco-atrum. — Ad folia Aceris 

 Pseudoplatani. — Xyloma punctatum Pers. DC. fl. fr. 2. p. 3o3 • mem. mus. 

 t. 3. f. 6.-b. Moug. et Nestl. exs. n. 477. — Receptacula minora 4o circiter in 

 maculam subrotundam disposita tamen inter se libéra neo nisi rariùs con- 

 flnentia subumbonata. — Hanc ut prioris forroara babet cel. Greville. 



5. R. Gnobrychis (Fries 1. c.) innatum hypophyllum conflnens oblongum 

 rugoso-sulcatum opacum intùs albidum. — Ad folia viva Onobrychis sativœ 

 in Vogesis (cl. Moug. et Nestl.). — Xyloina Onobrycbis DC. fl. fr. 5. p. i5y' 

 mem. mus. 3. t. 3. f. 3. — Maculœ aterrimse totnm folii discum fere occu- 

 pantes. 



6. R. Uktic* (Fries suec. exs. n. 209; syst. myc. 2. p. 5'jo.) innatum aterri- 

 TOum in crustam elougatam ambienlem cobeerens, tuberculis prominulis 

 lae-vibus flexuoso debiscentibus intùs cinerascentibus. — Ad caules Urticae 

 dioicae,byeme, vere. — Moug. et Nestl. vog. exs. n. 865. —Maculœ 1-2 une. 

 longaeepidermide caulis iiinatâ teetae. 



Trib. lïl. CYTI SPORE Au ^d. Brongn. cl. champ, p. 97.— 

 Cylisporei et Xylomacei Fries. 



Receptaculura ostiolo dehiscens aul rimose rumpens ; nucleus 

 sporulis farctus, tbecae nuUae? aut dissolut»? 



