(3) .1. HÜLLER. SERTUM MJSTRALIENSE. 315 



fcruncato-pyramidalis, apice concava; sporae in ascis solitariœ, circ. 

 I00(t longae et 30(± latae, v. rarius etiam 2-:i-iKi- et minores, crebreet 

 irregulariter toultilocellosae. — Est subaffine Th. anuulato Müll. Arg., 

 ubi apothecia intus hyalina et fere omnino immersa et thallus albidus. 

 — Corticola, New South- Wales : Knight n. 16 pr. p. 



7. Thelotrema profundum Müll. Arg. ; Asädinm profundum 

 Stirt. Addit to fche Lieh. Flora of Queensl. p. 5. — A Th. depresso 

 Montg., cujus forte varictas ex cl. Stirt. 1. c, habitu longo rcccdit. Est 

 proxinmni Th. megalosporo Müll. Arg. Lieh. Brisb. n. 95, sed apothecia 

 profunde immersa, nee apice alte hemisphœrico-producta et thallus 

 superficie lawis nee undique creberrime rugulosus. — Pcritheciuni 

 undique complctum, nigro-lüscum, tenue, superne longe angustatum ; 

 columella basilaris tenuiter cylindrica, ssepe V* mm. longa. — Corticola, 

 Queensland : Bailey n. 774. 



8. Leptotrema patulum ; Thelotrema monosporwn v. patidum 

 Nyl. Prodi*. Nov. Gran. p. 45. A Leptotremate monosporo (Nyl.) Müll. 

 Arg. bene distineta videtur colore albo imove caesio-albo thalli, apothe- 

 ciis demum multo latius apertis et disco esesio-pruinoso. — Species 

 cœterum apotheeiis haud aut vix aut distincte aut altiuscule emergen- 

 tibus variât. — Corticola in Nova Zelandia : Knight, et in Queens- 

 landia prope Brisbane : Bailey n. 722. 



9. Leptotrema polycarpum Müll. Arg. ; thallus medioeris, e 

 glaueo v. fiavescente albidus, Isevis, creberrime fertilis; apothecia l /*- 

 s /i mm. lata, orbicularia, ex immerso modice emergentia ; margo 

 thallinus crassiusculus, obtusus et integer, supra depressus et ibidem 

 decolorato-albescens, proprius et apicalis, nigrescens saspeque descissus ; 

 fundus nigrescens ; lamina e sectione l /t mm. lata, columella basilari 

 destituta ; sporae fuscae, in ascis angustis 1-seriatim 8-nas, 10-13 (raro 

 15) (x long«, 5-8 \l latœ, 4-loculares, loculi 1-3 bilocellati. — Inter 

 L. mastoideum et L. glaucescens Müll. Arg. locandum est. A priore 

 differt ostiolis multo minus apertis et thallo haud cœsio, et a posteriore 

 margine distincte prominulo et apotheeiis non in maculas caesio-disco- 

 lores dispositis. — Corticola, Queensland : Knight n. 80. 



10. Leptotrema nitidulum Müll. Arg. ; thallus tenuis, albidus, 

 lœvis et minute rugulosus ; apothecia dense sparsa et hinc inde con- 

 üuentia, ex innato modice emergentia, nano-hemispha?rica, cum thallo 

 nitidula, apice poro valde minuto orbiculari et oblongo v. subirregulari 

 aperientia (evacuatorum ostiolum demum V» mm. latum), apice non 

 depressa, regularia, in fundo valde angusto nigricantia; margines 



