.10 



LICHEN ALES. 



[Thallogens. 



priety <if carrying out the principles of ordinal division recognised elsewhere, will be 

 introduced among Lichens. In the meanwhile the evidence that lias been collected 

 Beemfi to point to such a mode of grouping as is indicated in the following proposed 



NATURAL ORDERS OF LICHENALS. 



feed spores 



Nucleus bearing aici ; tlm neous, gelatinous or cartilaginous 



is bearing asci ; thallus heterogeneous, pulverulent or cellular . 



12 Graph/dace.*;. 



13. collemack^. 



14. Parmeuack.*;. 



GENERA.* 



I. — ' "re. 



Shields open ; the nu- 

 cleus breaking up into 

 naked spores. 



* Pulveraridx. 

 Arthronla, 



I miliaria. Fr. 

 Artlnonaria, Fr. 

 Pulvtraria, Ac/i. 

 Lepraria, Acliar. 

 \ilans. 

 ! Uiry. 

 Jjeptubt i "i. liafin. 



* • Calycidx. 



Coniorarpon, I" . 



< 'om mo, I lnrk. 

 Trachilia, i'r. 



Calycium, 



an, Ach. 



Fee. 



ConJocybe, 



i iiev. 

 iliev. 



II. — TdiotTialameee, 



Sliields closed at first, 

 afterwards o|>en ; the 

 nucleus gelatinous, 

 made up of naked 

 spores. 



• Graphidae. 

 f'oniangium, I'r. 



I '.ilia. Ft. 



I, Eschw. 

 ma, Meyer. 

 Sclerophyton, / 



Lecanactis, Eschw. 

 LeeaaoHs, lielib. 

 Opegrapha, 



Ih/si. rinn, Ach. 



I chw, 

 Scaphu, Fschw. 

 /,. ucogramma, Meyer. 

 Qraphit, Eschw. 

 i • r . Pea. 

 Qraphls, / . 



r< uma, Eschw. 

 Platygramma . Meyer. 



•• Glyphldee. 



Medusula, Eschew. 



ographa, Foe. 

 i terisca, Meyer. 

 I'hiodecton, Ach. 

 Glyphi8, Ach. 



•- • LimboridjE. 

 L'rceolaria, Ach. 



■. I lement. 

 Tlielotrema. Ach. 

 Hymt noria, Ach. 



rocarpwm, Meyer. 

 '.' Pyrenula, Fee. 

 . Fee. 

 I.imboria, Ach. 

 (ivrostoinum, Jr. 

 Cliostoiuum, Fr. 



**** Pyxinidse. 

 Umbilicaria, Iloffm. 

 Ma, Merat. 

 ophora, Acliar. 



Wahlenb. 

 ' apnia, Vent. 

 Pyxine, I'r. 



III. — Gasterothalamea. 

 Shields always closed, 

 or opened by the irre- 

 gular separation of 

 the thallodial covering. 

 Nucleus enclosed, con- 

 taining asci, deliquesc- 

 ing or shrivelling up. 



• Verrucaridx. 

 Diorygma, / . ■ 

 Pyrenothea, Fr. 



Leprantha, Dufour. 



Thrombium . Wallr. 



'A latinaria, FlOrk. 

 Pyrenasti tun, /■' 



Parnu ntaria, Fee. 

 Verrucaiia, Pers. 



•• Trypethelid.-p. 

 Sphaeromphale, Reichb. 

 itria, I'r. 

 'nil it, Fr. 

 Blycopornm, .'/■ 



. Fschw. 

 Porodothium, Fr. 

 Astrotlieliuin. Eschw. 

 Tripetheliam, Spr, 

 Bathi Hum, Acliar. 



OphthaVmidium, Eschw. 

 Ocellularia, Meyer. 



*** Kndocarpidae. 

 Pertusaria, L>C. 

 Purina., Ach. 

 Porophora, Meyer. 

 Sagedia, Ach. 

 Stigmatidinm, Meyer. 

 En terographa , Fee. 

 Fndocarpon, Hedw. 

 1 1. 1 ■matoearpoa, Eschw. 

 ** Sphaerophoridie. 

 Siphula, Fr. 



I i,i fn urea, Ach. 

 Sphaerophoron, Pers. 

 ''loides, Hoffm. 



IV. — Hymenothalaiince. 

 Shields open ; nucleus 

 forming a disk, per 

 manent and bearing 

 asci. 



* Ephebidas. 

 Micarea, Fr. 

 Kphebe, Fr. 

 Coenogonium, Ehrenb. 



** Lecideidae. 

 Lecidea, Ach. 



< 'atillaria, Achar. 

 vnoplaea, Fee. 



Ml rint re ma, Fee. 



Rhizocarpon, Ramond. 

 Patellaria, Pers. 



Biatora, Fr. 



Ach. 



Psora, Iloffm. 



( 'ircinaria, Fee. 

 ■ raria, VVilld. 



I i rrucaria, Hoffm. 



Spluu rothallia, Nees. 

 Baeomyces, !'• rs, 

 Sphyridium, Flat. 

 Cladonia, Iloffm. 



( k nomyce, Achar. 



Capitularia, Fliirk. 



Scyphophorus, DC. 



J I, I of >od turn, DC. 

 •a in, Ach. 



Schasmaria, Ach. 



( '. riiiniiit, Ach. 



Pyxidium, Schreb. 



1'i/xidaria. Bory. 

 Pyaiotkelia, Achar. 

 Stereocaulon, Schreb. 

 Thamnium, Vent. 



**" Parmeliadae. 

 Gyalecta, Ach. 

 Dirina, Ft: 

 Cilicia. 

 Csenogium. 

 Parmelia, Fr. 



Lecanora, Achar. 



Squamaria, DC. 



Urceolaria, Fr. 



Phlyctis, Wallr. 



Patellaria, Fr. 



Psora, Fr. 



Placodium, Fr. 



Zeora, Fr. 



Amphiloma, Fr. 



1'iiiiaria, Delis. 



Lobaria, Hoffm. 



Physcia, Fr. 



Hagenia, Eschw. 



Imbricaria, Fr, 



Platisma, Hoffm. 

 Sticta, Sclireb. 



Pulmonaria, Hoffm. 



Petictilaria, Baumg. 



Crocodia, Link. 



? Pler.tocarpnn , Fee. 

 Peltigera. Willd. 



Peltidea, Ach. 



Antilyssus, Hall. 



Erioikrma, Fee. 



Solorina, Ach. 



Summer feltia, Fliirk. 



A. phroma, Achar. 



**** Usneidse. 

 Cetraria, Ach. 



Physcia, DC. 



Cornicularia, Iloffm. 



Coehtru ul mi, Link. 

 Roccella, DC. 

 Ramulina, Achar. 



PlatyphyUum, Vent. 

 Evernia, Ach. 



I'lirrira, Ach. 



Bryopogon, Lk. 



?Neuropogon, Nees. 

 Usnea, Hoffm. 



Pi ichenbachia, Spr. 



Numbers, Gen. 58. Sp. 2400. (Fee.) 

 Position. — Marchantiacese. — Lichenales. — Fungales. 



* Arranged principally according to Endlicher. 



