THE VICTORIAN NATURALIST. 179 



margins is not unusual in the colony ; but I have not previously 

 noticed the apothecia so completely veiled by their recurved 

 fringed margin, that there seemed, to a cursory examination, to be 

 no fruit at all. From this peculiarity I have called the form 

 ^'■pudens.'^ The Stereocauloji proximum is distinguishable from 

 specimens met with in the streams at Fernshaw and at Lome 

 only by the smaller conglomerate and scarcely fertile apothecia. 

 The two other Stereocaula and the Neuropogon I have previously 

 collected from Mount Macedon. 



Ten lichens are noted for the first time in Victoria. The 

 Siphula is the only species that I can say is new to science ; and 

 I have taken the liberty of naming it after the President of the 

 Association, who accompanied the excursion, and who by his 

 urbanity did much to make the trip pleasant and profitable to all. 

 The following is a description of the new lichen, which is interest- 

 ing chiefly from the fact that it is the first of the genus whose 

 spermagones and spermatia have been seen. The apothecia of 

 the whole genus is as yet unknown. Only the small capitula of 

 this new Siphula are visible among the moss where it grows ; and, 

 crowded together as they usually are, they may be at first sight 

 mistaken, as they were by myself, for a voXxxmIq Jiingertnannia. 



Description of Lichen New to Science. 



Siphula Muelleri, Wilson, sp. nov. 



Thallus parvus stipitatus stipite albido vel sordido (alt. 7 mm., 

 crass. 2 mm.), ad basin radiculis defixo longis (ad. 9 mm.) ramosis, 

 capitulo olivaceo nitido turgido (2x3 mm.) difformi-lobato. 

 Quoad anatomem thalli stratum corticale est ten ax, cellulosum, 

 medulla e filamentis cavis (crass. "003 mm.) formata, gonidia 

 virentia (diam. circa -015 mm.) Spermagonia endocarpoidea 

 patentia saepius valde depressa. Spermatia recta, circa -004 x 

 ■001 mm. Habitat inter muiscos ad rupes subalpinas (alt. 6,000 

 ped.). Mount Hotham, Victoria. 



Lichens Collected on Alpine Heights, Mt. Hotham, &c., 

 17TH January, 1890. 



Cladonia gracilis, Hftm. 

 Clanonia pyxidata, Fr. 

 Cladonia degenerans, Flk. 

 Cladonia crispata, Ach. 

 Cladonia xanthoclada, J. M. 

 Cladonia cornucopioides, Fr. 

 Cladina aggregata, Sw. 

 Stereocaulon proximum, Nyl. 

 * Stereocaulon, species undeter- 

 mined 



* Stereocaulon, species undeter- 



mined 



* Siphula Muelleri, Wilson, sp. 

 nov. 



Usnea barbata, L. 

 *Neuropogonmelaxanthus, Ach. 

 Pettigera polydactyla, Hfifm. ; 



f pudens, Wilson 

 Sticta darasecornis, Sw. 

 Parmelia Mougeottii, Schser. 



* Alpine or sub-alpine species. 



