LICHENES EXTRA-EUROPE. 85 



nibus a Bonplaud in America œquat. lectis optime septatse atque cellulas oblongas, 

 lumine testaceo et pariete tenui preebentes. Hyphee medullares cum gonidiis materia 

 obscure albida, K dissoluta tectae, 2-3 {/. crassse, superficiel parallelae, prope gonidia magis 

 ramosse et minus stricte implexœ. Cortex inferior 20 u. lalus, niger aut obscure brunneus 

 ex hyphis superficiei parallelis obliquisque et arcte coalilis constitutus. Apothccia 

 0,6-1 mm. lata, supra thallum in cenlro sparsa sessiliaque, ab origine nigra, excipulo 

 proprio, sat crasso et primum prominulo et demum fere evanido cincla atque disco 

 nigro piano aut dein convexulo ornata. Excipulum proprium flabellatum et in apice 60 \>. 

 lato, nigrescens, K immulatum aut leviter violascens, ex hyphis verticalibus septatisque 

 atque arcte coalitis constans ; epithecium nigrum K violaceum ; hypothecium fusco- 

 nigrum, K non mutatum ; sub illo hyphee medullares materia flavente, K dissoluta, tectae, 

 3-4 [t. crassae, crebre septata? et laxe implexae atque gonidiis destitutse et tandem inferne 

 ha?c medulla limitatur cortice pseudoparenchymatico, 30 a lato, et basin excipuli proprii 

 tangente. Paraphyses 80 \j. altœ, 1 jj. crassse, vix apice incrassalse ; sporœ 8"' c , fuscse, 

 1 -septatse, 15-18 [/.Ion gae et 6-7 platée. Gelatina hymenialis iodo persistenter cserulescens. 

 (Spermatia recta, apice incrassatula, 2, 5-4 jj. longa et 0,5 [x lata, sterigmata 2-3 articu- 

 lata, Malme Die Gatt. Pyxine p. 39). 



Viget insuper in Asia (India, Manipur, Malacca) ; in Africa (Abyssinia, Natalia, Transvaalia et 

 promont. Bonœ Spei) ; in America tropica ; in Oceania (Australia et Polynesia). 



357. Pyxine sorediata El. Fr. System. Orb. vegetab. (1825) p. 267, Nyl. apud Hue 

 Lich. exot. n. 1012, Tuck. Synops. North Americ. Lich. I, p. 80, Hue Lich. Yunn.-ç. 36, 

 Wain. Lich. Antill. (1895-1896) p. 8 et Malme Die Gatt. Pyxine p. 40; Lecidea sorediata 

 Ach. Synops. Lich. (1814) p. 54; Parmelia sorediata Tuck. Synops. Lich. New Engl. (1848) 

 p. 35 et Lich. Americ. septentr. exsicc. n. 19; Parmelia Cocoes var. sorediata Tuck. 

 Observ. Lich. I (1860) p. 402; Pyxine Cocoes var. sorediata Nyl. Synops. Lich. II, p. 2; 

 Zolling. Plant, javan. n. 838. 



In Asia : 1. in Japonia legit R. P. Faurie corticolam et sterilem in ins. Yeso, sine loco 

 notato, n is 632, 656 et 699 pr. p., julio 1898; in ins. Nippon, in Aomori, n, 415 pr. p., 

 januario 1898. — 2. In China, prov. Yun-nan, legit R. P. Delavay corticolam et l'ertilem, 

 in Kiao-che-long. n . 37, in sylvis Tong-chan supra San-tchang-kiou (Ho-kin) et in Mo-so-yn, 

 19, 27 et 30 martii 1890. 



In Africa: 1. in ins. Borbonia legit fr. Rodriguez corticolam sterilemque, anno 1889. 

 — 2. In ins. Madagascaria legit idem saxicolam et sterilem in Ambositra, anno 1889. 



In America: in ins. Martinica corticolam et fertilem legit R. P. Duss, anno circiter 1887. 



Thallus flavido-olivascens vel albido-flavens, in centro saspe obscurior, orbicularis, 

 plagas 2-8 cent, latas formans, adpressus, c'rassiusculus, anguste laciniatus et K supra 

 nunc optime flavens, nunc non tinctus; lacinise 1-4 mm. latse, pluries lacinulatae,lacinulis 

 nunc e centro ad peripheriam radianlibus atque subimbricatis, nunc sine ordine dispo- 

 sitis atque solum contiguis, lateraliter crenatis, apice rotundatis et integris crenulatisve; 

 supra in peripheria apice punctato-pruinosse vel nudse, marginibus nunc continue corli- 

 catis, nunc albo-vulneratis, et cenlrum versus in margine utroque etiam sorediis albi- 

 dis vel griseis, parvis aut magnis, in centro sœpe confluentibus ornata? ; intus stramineae, 

 sulfureœ vel etiam fere aurantiaca? ; subtus nigra? atque rhizinis nigris, parvis, simplicibus 

 atque numerosis munitœ. Cortex superior 35-50 [/. latus, albidus et superne corpusculis 

 flavidis obsitus, pseudoparenchymaticus ex hyphis superficiei perpendicularibus, pluri- 

 septatis cellulasque subrolundas vel oblongas, lumine testaceo et 3-4,5 pi lato, et pariete 

 tenui formantibus atque strato amorpho 5-6 (jl crasso tectis constitutus. Gonidia 10-12 y. 

 lata in strato salis crasso sub cortice superiore sita ; hyphœ gonidiales parum lacunose 



