UXCINULA IIT 



the rules of priority for the Uncimila^ originally called '* Erysiphe 

 polychaeta^'' it became necessary to rename the Uncinnia polycJiacta 

 of Berk, and Curt., which is now known as Unciuida confnsa 

 Massee. 



14. U. AUSTRALIS Speg. [Fig. 61] 



Uncbiula australis Speg. Fung. Guaran. Pug. i : 66, n. 167. 

 i886;.Sacc. Syll Fung., addit. ad. vols. I.-IV : i, 1886; and 9 : 

 366. 1 89 1. 



Epiphyllous"*; mycelium persistent, densely compacted and 

 effused over the surface of the leaf, or thinner and in scattered 

 patches ; pcrithecia scattered, 120-138 fi in diameter, globose- 

 depressed, cells small, about 8 /^ wide ; appendages numerous, 35- 

 60, I %-i Yz times the diameter of the perithecium, simple, 



colorless, aseptate, thin-walled throughout, rough and slightly 

 enlarged in the upper half, but not swollen at the apex, which is 

 simply uncinate; asci about 10, broadly ovate, shortly stalked, 



58-65x32 



O" 



'* Epiphylla ; mycelium arachnoideum, grisecenti-album, late 

 folia ambiens, eisque arete adnatum, tenue, compactiusculum, non 

 pulverulentum ; perithecia densiuscule hinc inde sparsa, globoso- 

 depressa, minuta (100-120 diam.) atra, glabra, membranaceo- 

 coriacella, contextu parenchymatico, parum persplcuo, fuligineo, 

 basi 20-40 appendicibus radiantibus ornata ; appendices divaricatae 

 (100-130x4-7), utrinque gradatim, attenuatae et laeves, medio 

 saepius incrassatulae ac minutissime densiusculeque granuloso- 

 papillosae, apice saepius semel plus minus ve circinatae (rarius 

 rectae atque obtusata), hyalinae. Asci et sporae non visa." (Speg., 

 loc, cit.) 



Host, — Eugenia sp. 



Distribution, — South America : Paraguay. 



The first description given above is drawn up from the speci- 

 mens in the Kew Herbarium, and in the Herbarium of the Paris 

 Museum, labelled '* B. Balansa, PI. du Paraguay, 1S78-1884. 

 Nr. 3814. Uncinnia australis Speg. Fung. Guaran. pug. t: dd. 

 Feuilles e: Eugenia. Naranjo, sur la -Cordillere de Peribebuy, 24 

 mai 1883." I have seen no other examples. The original speci- 

 mens from which Spegazzini drew up his diagnosis, given above, 

 were too young to contain asci, and the description of the ap- 

 pendages as sometimes "straight and obtuse " doubtless refers to 

 the immature condition. 



