[IS] 



F. THEISSEN : LE GENRE ASTERINELLA I I 5 



rol., in Myrceugeniae foliis, Concepción, Chile. — Balansa, Plantes 

 du Paraguay 4329 toto coelo differt] 



Omnino similis A. ae Puiggarii, sporis 

 solum et hyphis mycelialibus rectis tenuio- 

 ribus recedens. 



Mycelio atro-nebuloso ex hyphis rectis, 

 3 1 / 2 ~4 [J- crassis, fuligineo-brunneis, laxius 

 septatis (articulis 20-26 [x longis), plerum- 

 que opposito-ramosis formato, maculis ±l ru- 

 bro-brunneis insidente. Thyriothecia orbi- 

 cularia, 140-200 u diam. vel subelliptica ca. 

 250=200 p., applanato-scutata, ostiolo cen- 

 trali dehiscentia, ex hyphis brunneis, graci- 

 libus, flexuoso-undulatis, centro septatis (pe- 

 ripherice aseptatis, laetioribus, crenulato- 

 dentatis) radiatim contexta, dense obtecta 

 hyphis mycelialibus, centro usque ad fim- 

 briam facile pressione in artículos secedentia. 

 Asei oblongo-elliptici vel fere cylindraceo-clavati, aparaphysati, 

 70-80 = 20-24 f/, fere sessiles, supra rotundati, 8-spori ; I fere — . 

 Sporae distichae, brunneolae, obovatae vel oblongae, 14-19=6-817., 

 laeves, inaequaliter septatae (cellula superiore breviore), vix con- 

 strictae, cellula inferiore primo conice-attenuata, demum rotundata, 

 angustiore. 



14- A. manaosensis (P. Henn.) Th. 



Fig. r3 - A. cyliudrotheca 



1 — Mycelium 



2 — Asei 



3 — Sporae. 



Syn. : Asterella manaosensis P. Henn. — Hedvig, 1904 p. 370; 

 Syll. xvn p. 882. 



[Herb. Berol. in foliis Anonaceae, Rio Negro, Amazonas.] 

 Maculae arescentes brunneolae in matrice epiphyllae, 1 / 2 -l cm. 

 diam., orbiculares, thyriothecia dense aggregata crustâ fere conti- 

 nua continentes. Mycelio dense irregulariterque ramoso, extra so- 

 ros peritheciales vix excurrente, ex hyphis irregularíter septatis no- 

 dulosisque, 4 1 / 2 5 1 / 2 p. crassis, brunneolis formato. Thyriothecia 

 200-300 [j. diam., orbicularia vel sub-elliptica, ostiolo centrali um- 

 bilicato, contextu fusco, ex hyphis tenuissimis, dense crenulato-in- 

 tertextis constructa. 



