360 GLOSSAEY 



IsiDinM (Gr. isis, a genus of corals, eideos, like), a coral-like outgrowth on 

 the lichen thallus, rounded at the top, resembling the old genus 

 Isidium. 



Jointed, septate. 



Lacerate (Lat. lacej; mangled), torn or irregularly cleft. 



LAcmiA (Lat. ladnia, a fragment of cloth), a slender thalline lobe. 



LAcmiATE, thallus cut into narrow lobes. 



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



holes. 

 LEVIGATE (Lat.), smooth as if polished. 



Lagenifobm (Lat. lagena, a flask), shaped like a Florence flask. 

 Latebal (Lat. latus, a side), fixed on or near the side of thallus or 



apothecium. 

 Leoanobine (LecaiK/ra, a genus of lichens), applied to apothecia with a 



thalline margin as in the genus Lecanora. 

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



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



in Lecidea. 

 Lenticular, Lentifobm (Lat. lens, z, lentil), lentil- or lens-like, doubly 



convex. 

 Leprabioid (Gr. lepra, leprosy), with a whitish mealy or scurfy surface 



like the old form genus Lepraria — Leprose. 

 Leptogioid, similar to the genus Leptogium. 

 Lbptogonidia (Gr. leptcs, delicate, gone, ofispring), algal cells of small 



size, cf. gonidimia. 

 LiGHicOLE, LiGNicoiiOus (Lat. lignum, wood, colo, to inhabit), living on 



wood or trees. 

 LrEELtA (Lat. lira, a ridge between two furrows), a long narrow apothecium 



with a ridge down the middle — LrRELiia;FOBM. 

 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. luteus, gold-coloured), a full yeUow-colour. 



Macbo-, Greek prefix, signifying large. 



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



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



Marginal, situate on the edge or margin. 



Mabginate, having a margin, term applied to apothecium. 



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



Maz^dium, fructification of CaUcei : spores free from the asci forming a 



powdery mass in almost closed heads. 

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

 Memebanaceous, thin, like a membrane. 

 Miceo-, Greek prefix, signifying small. 

 MiCROPHTLLiNE (Gr. Ttdkros, small, phullon, a, leaf), composed of minute 



lobes or scales. 

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

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

 Mono-, Greek prefix, signifying one. 

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



organs on the same plant. 

 MoNOPHYLLOUS (Gr. monos, one, phullon, a leaf), one-leaved. 

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



genus with one species. 

 Mucus, MucoSE (Lat. mucus, nasal secretion), mucUaginous. 

 MuLTi-, Latin prefix, signifying many. 



