OP GREAT BRITAIN. 505 



Albo-maculai; consisting of a white spot or patch. 



Albo-oceUate, surrounded with a white thalline margin, giving an eye-like 



appearance. 

 Albo-pruinose, with white prnina. 

 Albo'pulverulent, having white powder. 

 Albo-sorediate, with white soredia. 

 Albo-suffused, covered with white powder or pruina. 

 Albo-tomentose, with white tomentum. 

 AVbo-verrucose, having white warts. 

 Albo-viirescent, whitish-green. 



Alectorioid, filiform or filamentose, like the thallus of the genua Alectoria. 

 Anastomosing, uniting in a network. 

 Angular, with many sharp-cut straight sides. 

 Angulari-areolato-verrucose, consisting of augular warty areolae. 

 Angulari-nucleolate, with angular shaped nuclei. 

 Anguloso-difformed, angular and deformed by crowding. 

 Anguloso-rvmose, broken into angular portions by chinks. 

 Angustissimo-divided, divided into the very narrowest laciniae. 

 Anwula/ri-tomentose, having a ling of down. 

 Apex, the end or point. 

 Apically, at the apex. 



Apiculate, terminating abruptly in a little point. 

 ApicuU, minute points. 



Apothecium, the entire female fructification of a lichen. 

 Appendicular, an apothecium subtended by the apex of a branch or lacinia 



extending beyond it. 

 Applanate, flattened out or horizontally expanded. 

 Applanato-dilated, broad and flattened out. 

 Appressed, pressed closely to anything. 

 Appresso-furfwoxeous, having appressed scurf. 

 Appresso-mnate, closely pressed to, and partially innate or sunken. 

 Appresso-spongioso-tomentose, having a close-pressed spongy tomentum. 

 Appresso-tomentose, with appressed tomentum. 

 Approximate, approaching. 

 Arachnoid, cobwebbed. 

 Arachnoideo-lomentosc, having a loose tomentum or down hanging about like a 



cobweb. 

 Arcuate, ourved like a bow. 



Arcuato-rugulose, wrinkled in an arcuate or curved manner. 

 Ardellce, the peculiar apothecia in the genus Arthonia resembling burnt or 



cauterised spots. 

 Areolato-imbricato-crustaceoiis, with overlapping areolae almost crusty. 

 Areolato -impressed, impressed in the areolae. 

 Areolato-papillate, divided into papillate areolae. 

 Areolato-rimose, divided into areolae by chinks. 

 Areolato-squamulose, consisting of flattened scaly areolae. 

 Areolato-verrucose, consisting of wart-like areolae. 



Arthoritnd, of the form and consistence of the apothecia in the genus Arthonia. 

 Articulate, jointed. 



Artuyulato-constricted, having contracted joints. 

 Arthrosterigmata, jointed sterigmata. 

 Ascending, bending upwards in an upward direction. 

 Ascendenti-imbricate, ascending and overlapping. 

 Asci, small hyaline bladders containing the spores. 

 Ascyphous, without scyphi or cups. 

 Atro-cinerascent, black or dark-ashy-grey. 

 Atro-rhizinose, having black rhizinae. 

 Atro-rufous, dark and blackish-red. 

 Attenuate, tapering upwards and becoming thin. 

 Attenuato-fusiform, slenderly spindle-shaped. 

 Attenuato-subulote, tapering upwards into an awlshape form, 

 Aurantiaco-ochraceous, of an orange-ochrey colour. 

 Axil, the fork of a branch. 



ESSU } ^-shaped. 

 Badious, dull-brown. 

 Badio-castaneous, dull-dark-chestnut. 



