300 (ILOSKAUY 



IsiDiUAi (Gr. isis, a gonns of corals, eideos, like), a coral-like outgrowth on 

 the liclion thallu8, rounded at the top, resembling the old genus 

 Isidiitm. 



JoiNTEo, septate. 



Lackrate (Lat. laccr, mangled), torn or irregularly cleft. 



TjACinia (Lat. lacinia, a fragment of cloth), a slender thalline lobe. 



I:ACiNiATE, thallus cut iuto uarrow lobes. 



Lacuna, Lacunosk (Lat. lacuna, a hollow cavity), having depressions or 



holes. 

 Lacvigate (Lat.), smooth as if polished. 



IjAGENiform (Lat. lagena, a flask), shaped lilce a Florence flask. 

 Laterai, (Lat. lafus, a side), fixed on or near the side of thallus or 



apothecium. 

 Lecanorine {Lecanora, a genus of lichens), applied to apothecia with a 



thalline margin as in the genus Lecanora. 

 Lecideine (Lccidca, a genus of lichens), applied to apothecia which are 



carbonaceous, usually dark-coloured and without a thalline margin, as 



in Lecidca. 

 Lenticular, Lentiform (Lat. lens, a lentil), lentil- or lens-like, doubly 



convex. 

 Leprarioid (Gr. lei^ra, leprosy), with a whitish mealy or scurfy surface 



like the old form genus Lepraria — Leprose. 

 Leptooioid, similar to the genus Leptogium. 

 Leptogontdia (Gr. leptcs, delicate, gone^ offspring), algal cells of small 



size, cf. gonidimia. 

 LiGNicoLE, LiGNicOLOUS (Lat. lignum, wood, colo, to inhabit), living on 



wood or trees. 

 LiRELLA (Lat. lira, a ridge between two furrows), along narrow apothecium 



with a ridge down the middle — Lirell^form. 

 Livid (Lat.), of a leaden colour, pale and clouded. 

 LoBATE (Lat. lobos, the lower part of the ear), thallus divided into lobes — 



LOBULATE. 



LocuLus, LocuLAR (Lat., a little place), a compartment of a septate spore. 

 Lurid (Lat. luridus, sallow, wan), dull, or dingy in colour. 

 LuTEOUs (Lat. liiteiis, gold-coloured), a full yellow-colour. 



Macro-, Greek prefix, signifying large. 



Macrophylline (Gr. makros, long, phullon, a leaf), having large lobes. 



Macular (Lat. macula, a spot), applied to a thallus occurring in spots. 



Marginal, situate on the edge or margin. 



Marginate, having a margin, term applied to apothecium. 



Mastoid (Gr. tnastos, a breast, eidos, like), nipple-like. 



Maz.sdium, fructification of Calicei : spores free from the asci forming a 



powdery mass in almost closed heads. 

 Medulla CLsit. pith), the loose hyphal layer in the interior of the thallus. 

 Membranaceous, thin, like a membrane. 

 Micro-, Greek prefix, signifying small. 

 MiCROPHYLLiNE (Gx. mikros, small, plmllon, a leaf), composed of minute 



lobes or scales. 

 Miniate (Lat. miniatus), coloured like red lead or cinnabar. 

 MoNiLiFORM (Lat. monile, a necklace), in rows, like a string of beads. 

 Mono-, Greek prefix, signifying one. 

 MoNCECious (Gr, monos, one, oikos, a house), with male and female 



organs on the same plant. 

 MoNOPHYLLOus (Gr. memos, one, phidlon, a leaf), one-leaved. 

 MoNOTYPic (Gr. vionos, one, tupos, a type), having only one exponent, as a 



genus with one species. 

 Mucus, MucosE (Lat. mucus, nasal secretion), mucilaginous. 

 MuLTi-, Latin prefix, signifying many. 



