98 A. -M. HUE. 



Peltigera polydactylon Hoffm. Plant, lichen. I (1790) p. 19, tab. IV, fig. 1; Lichen 

 polydactylus Web. in Jacq. Collect. (1789) p. IV, tab. 14, fig. 2; Peltidea polydactyla 

 Ach. Method. Lich. (1803) p. 286, Lichenogr. unir. p. 519 et Synops. Lich. p. 240, 

 Peltigera polydactyla $ microcarpa Schaer. Lich. Helret. exsicc. n. 30; P. polydactyla 

 Hoffm., Malbr. Lich. Normand, n. 64, Oliv. Herb. Lich. Orne n. 16, Flagey Lich. Fran- 

 che-Comté n is li, 161 et 162, Norrl. Herb. Lich. Fenn. n. 377, Harm. Lich. Lothar. n. 344, 

 Arn. Lich. exsicc. n. 1030 e et Lich. Monac. exsicc. n. 340 et Johns. The North Engl. 

 Lich. Herb. n. 27. 



In Asia : 1. in. Japonia legit R. P. Faurie supra terram aut cortices in ins. Riishiri, 

 n. 1423; in ins. Yeso, sine loco indicato, n. 61 ï pr. p., julio 1898, in monte vulcanio 

 Moinbetsa, n. 9197, 21 aprilis 1893, in monte Sapporo, n. 9213, 30 aprilis 1893: in ins. 

 Nippon, in monte Gansu, n. 738, 12 augusti 1898, in Kamitsuge, 13 maii 1899 ; in ins. 

 Kiushu, in Taradaké, n. 1696, 6 junii 1899. — 2. In China, prov. Yun-nan legit R. P. Faurie 

 supra terram in sylvis Song-pin supra Ta-pin-tze, 6 junii 1887, in Ma-ent-chen, 10 septem- 

 bris 1889 et in Tchen-fong-chan, martio 1894. 



In Africa : 1 . in Algeria, in montibus Djurdjura prope Bordj-Boghni legit D r Cosson, 

 junio 18o4. — 2. In ins. Borbonia, legit fr. Rodriguez, martio 1887. 



In America : 1. in Ohio legit Lesquereux supra terram, n. 272. — 2. In ins. la Désirade, 

 supra truncos legit Lesquereux, n. 32. 



In Oceania : in Nova Caledonia, in Mont-Mou legit Balansa, altit. 1200 m., 

 n. 2984. 



Thallus obscure glaucescens, vel pallide brunneus aut fuscescens seu his coloribus 

 variegatus, foliaceus, membranaceus, nitidus, lobatus ; lobi 4-8 mm. lati (alibi latiores), 

 sœpe sat profunde lobulati, ambitu integri aut crenati ; supra Isevigati seu impresso-inse- 

 quales; intus albidi ; subtus tomentelli alque venis nunc ubique nigris, nunc et sa?pius ad 

 oras rufis, reticulalis cum interstitiis albidis et paucis rhizinis nigris ornati. Cortex supe- 

 rior 40 pilatus, albidus aut superne brunneus, pseudoparenchymaticus, ex hyphis super- 

 ficiel perpendicularibus 3-4 septalis, cellulas rotundas angulatasve, pariete tenui, lumine 

 9-12 [jl lato, passim et superne multo minore formantibus atque slrato amorpho 5-6 ij. crasso 

 tectis constans. Stratum gonimicum crassum, cum gonimiis 4-8 w latis, subrotundis vel 

 oblongis, etinter ea hyphse gonidiales numerosse. Medulla materia albida tecla ex hyphis 

 5-10 a latis, pariete paulum crasso, superficiel parallelis et obliquis, sat stricte implexis, 

 alque in zona inferiore fuscis vel nigrescentibus, constricte septatis, septis remotis, pariete 

 multum incrassato, ramosis et varie directis constituta. Apotheciarufa vel fusco-rufa, in 

 apice lobulorum thalli pluries digitatorum, brevium aut paulum elongatorum atque 

 adscendentium enata, oblongo-rotundata et margine thallode crenulata cincta, demum 

 oblongaet rétro voluta atque vulgo immarginata, subtus araneosa. Excipulum lateraliter 

 tantum exstans corticem grosse pseudoparenchymaticum praebens ; hypothecium leviter 

 luteolum; medulla ex hyphis 9-15 jx latis, et in parte externa ramosis septatisque et 

 pariete incrassato constituta; epithecium rufescens; paraphyses 100 u altae, 4 p crassœ 

 (aliquando minores, conf. Hue Lich. Canisy, p. 29), constricte articulataa, articulis elon- 

 gatis, superne duobus ultimis approximatis, atque ultimo rotundo capitatse; theca 1 cylin- 

 dricoa 80 y. altœ et 12 [l latae ; sporae S nx , hyalinœ, fusiformes, 3-5 septata?, aut septis indis- 

 tinctis, 52-76 ( a longae et 3-5 p. latse (in Hue Lich. Canisy longiores). Gelatina hymenialis 

 iodo cœrulescens et mox decolorata, thecarum apice persistenter casrulescente. 



— F. 1. collina Nyl. Lich. Scand. p. 90, Miill. Arg. Lich. Yatab. p. 192; Peltidea 

 scutata [i collina Ach. Lichenogr. unir. p. 515 secundum descriptionem, nam juxla 

 Acharii herbarium hoc nomen ad Pelligeram scu/ata/n Koerb. pertinet, conf. Wain. 

 Adjam. Lichenogr. Lappon. fenn. p. 130. 



