94 A.-M. HUE. 
el laxe implexæ. Apothecïa 2-3 mm. lata, lateralia in ramo nunc simpliciter geniculato 
et dein erecto, nune in forma litteræ græcæ x recurvo, disco lævi, margine integro atque 
disco badio-rufescenti prædita. In excipuli cortice 76 y lato, albido et passim flavidulo, 
atque in zona exteriore obscure flavido, hyphæ verticales ramosæque et retem maculis 
parvis et imparibus efficientes ; gonidia sub cortice et sub perithecio ; hyphæ medullares 
8-10 y crassæ et laxe implexæ ; perithecium 120 y latum ex hyphis verticalibus ramo- 
sisque et strictissime coalitis compositum ; hypothecium angustum ex hyphis horizonta- 
libus, ramosis et etiam strictissime coadunalis ; epithecium obscure rufescens atque 
hymenium superius sic tinctum ; paraphyses 140 y allæ, 1-1,5 w crassæ, confertæ, arti- 
culatæ, vix ramosæ et apice non incrassatæ ; sporæ 4"*, raro 2", late ellipsoideæ, sim- 
plices, primum hyalinæ et dein obscure fuscæ, 26-34 y longæ et 16-18 p latæ, immixtis 
magis ellipsoideis, 26-30 y longis et 18-20 z latis aut fere sphæricis 18 y longis et 16 w 
latis, episporio 3 y crasso. Gelatina hymenialis iodo cœrulescens e! dein vinose rubens. 
Iusuper in Asia (Japonia el Sibiria); in Africa (ins. Canariis, Madera et Borbonia) ; in America 
boreali (Groenlandia et ins. Miquelon) et meridionali (Chili); in Europa boreali et in mediæ mon 
tibus editis. 
181. Alectoria læta Hue; Cornicularia læta Tayl. (4) in Æook. Journ. of Botan. 1847, 
p. 190, Bryopogon lætum Müll. Arg. Lich. Beitr. n. 1972; Alectoria osteina Nyl. Enum. 
Lich. (1858) p. 98, in flora 1858, p. 378, Lich. Middend. p. 2, apud Hue Lich. exot. n. 567 
(ubi datur reactio erronea) et Lich. Japon. p.22; Stizenb. Alectorienart. p. 193 ; A. sarmen- 
tosa var. osteina Nyl. Synops. Lich. I, p. 282; A. japonica Tuck. Synops. North Americ. 
Lich. I, p. 142, teste specimine authentico in herb. Mus. paris. 
In Asia : in Japonia corticolam legit R. P. Faurie in Mijôkôsan, nf 346 et 450, 
23 julii 1897 (steriles); in ins. Nippon, Togakuski yama, n'° 793 (sterilis) et 808 (fertilis), 
16 septembris 1898. 
Thallus albidus vel albido-cinerastens, passim subnigrescens, 3-8 cent. altus, subni- 
tidulus aut in ramis junioribus subpellucidus ; rami primarii in specimine fertili À mm. 
crassi et compressi, in sterilibus 0,4-0,5 mm. crassi, subteretes et passim angulati, 
multum et varie ramosi, ramis divaricatis implexisque, pluries divisis et in ultimis divi- 
sionibus teretes atque eliam capillares, apice concolores aut brevissime denigrati; in 
superficie vel in lateribus frequenter sorediis oblongis, albidis, paulum elevatis asperati 
et quoque, sed raro, setosi ; K extus leviter flaventes aut immutati atque pariler passim 
bene rubentes, intus K (CaCl) rubentes. Cortex 90-100 et etiam 140 & latus, duplici zona 
(1) Cel. Nylander in Flora 1858, p. 378 scripsit : « Cornicularia læta Tayl. in sched. herb. Hook. et 
C. lata Tayl. in Hook. Journ. Botan. 1847, p. 188, sed nihil lætum neque latum habet hæc 
species ». Indicatio paginæ est erronea, nam diagnosis hujus Lichenis p. 190 legitur. Insuper nomen 
latum ex errore typographico provenire videlur, nam in schedula herbarii Taylor adest certe 
C. læta, et Hooker scribens hanc reproducere schedulam intendebal. Sed hoc nomen /æfa prioritate 
gaudet et ratio ad illum rejiciendum a D'e Nylander allata, nullius est valoris. 
Sequitur diagnosis ab Hooker loc. citat. data : 
Cornicularia lata Tayl. (nomen corrigendum). — Thallc glabro, albido, tereti, subanguloso, 
ramosissimo, ramis ullimis minutis, subfastigiatis, divaricatis, gemmis linearibus, utrinque acu- 
minatis, albis, elevatis : apotheciis podicellatis, extus gemmiferis, disco-concavo, fusco-carneo, 
margine incurvo, crenulato. 
Hab. Mexico; Hook. herb. Thallus 2-3 inches in diameter, white and slightly greenish, unaltered 
by moisture. Apothecia frequenter proliferous of a single shoot benath, very concave, the disk 
dark brown when dry, assuming a pale colour and carneous hue when moisted. This species, which 
has the apothecia of a Borrera of Acharius on the thallus of Cornicularia can scarcely be confounded 
with any other. 
