CI. tlidyma. 137 



19. CI. didyma (Fee) Wainio. 



Diagii, Th alius primarius squamis sat parvis, tenuibus, 

 anguste laciniatis, fragilibus. Podctia cylindrica, ascypha, sal- 

 tern c majore parte decorticata, vulgo semipellucida, subpallida 

 aut albida, granulis, verruculis, squamulis aut parce quoquc sore- 

 diis obsita, strato medullari extcriore destituta. 



Syn, Scypliophorus didymus Fee, Ess. Crypt. Ecorc. (1824) p. XCVIII 

 et CI, Ess. Crypt. Ecorc. Suppl. (1837) p. 149 (secimd. specim. authent. in miis. 

 Paris.). Conf. infra. 



Cladonia luuscigeua Eschw. in Mart. Fl. Bras. (1833) p. 262 (specim. 

 orig. uon vidi). — Mont., Huit. Cent. PI. Xoiiv. (1857) p. 298. — Leiglit., Lich. 

 Amaz. (1866) p. 439, Not. Lichenol. XI (1866) p. 417, XII (1867) p. 123. — 

 Nyl., Prodr. Nov. Granat. Addit. (1867) p. 303. — Krempelli., Exot. Fleclit. 

 Hb. Wien (1868) p. 309. — Nyl., Syn. Lich. Nov. Cal. (1868) p. 11. — Tuck., 

 Gen. Lich. (1872) p. 148. — Krempelh., Lich. Bras. Warm. (1873) p. 3. — 

 Tuck., Lich. Wilk. Unit. St. Exp. (1874) p. 121. — Miill. Arg., FJ. 1885 p. 531. 



Cladonia vulcauica Z oiling, in Hasskarli Natur- et Geneeskundig Ar- 

 chief voor Neerknds Indie, I Jahrg. (1847) p. 396, Fl. 1847 p. 317 (secund. 

 specim. authent. in mus. Paris.). Conf. infra. 



Cladonia isidioclada Mont, et v. d. Bosch in Mont. Syllog. Crypt. (1856) 

 p. 336. — Mont, et v. d. Bosch, Lich. Jav. (1856) p. 457 (secund. specim. 

 orig. in mus. Paris, et herb. Miill.). Conf. infra. 



Cladonia macilenta *C1. spliaerulifera Nyl., Enum. Gen. Lich. 1857) 

 p. 96 (secund. specim. authent. in mus. Paris.). Conf. infra. 



Cladonia macilenta *C1. musci^eua Nyl., Lich. Exot. (1859) p. 236, 

 Syn. Lich. (1860) p. 225, Lich. Nov. Granat. (1863) p. 432. 



Cladonia Hawaiensis Tuck, in litt. teste- ipso, Lich. Wilk. Unit. St. 

 Exp. (1874) p. 21. 



Cladonia melauodes Nyl. in Cromb. Enum. Lich. Falkl. (1877) p. 225 

 (secund. specim. orig. in herb. Hook.). Conf. infra. 



Cladonia niuscicola Mull. Arg. in Fl. 1882 p. 298. 



Exs. a me non examinata: Wright., Lich. Cub. n. 42, et 

 Spruce, Lich. Amaz. et And. n. 34 (teste Leight., Not. Lichenol. 

 XI p. 417). 



Descr. Hy pot h alius continuationem podetiormn aut fasci- 

 culum ramosum basi thalli prhnarii affixum formans aut cvanescens. 

 Thallus primarius vulgo demum evanescens, rarius persistens, 

 squamis minutis aut mediocribus, longitudine circ. 3 — 0,5 millim., 

 tenuibus, crassitudine circiter 0,i2o — 0,i5o millim., vulgo laciniatis 



