!’]']• CRYPTOGAMIA. ALGAE. 1938, Lichc*. 
s. chlittraius. Granular, yellowilh, with a nearly orbicular flightl>’'^®^l'f 
circuir.fereuce, Ihields flat, much crowded, central, becoming 8*'?*’ 
and convex, orange with a paler margin. ./u^ 
ehlersphanus. Cruftacto-frondofe, fomewbat tartareous, thic^ , 
deep yellow, radiately plaited, w'ith nearly cylindrical l^'*^ 
fhields flatlidrand convex, deep yellow. 
*Murorum. Plaited-wrinkled, cracked, orbicular, greenidi-)'^*, 
with a radiate plaited circumference; lobes cut, concrete : 
becoming convex, nearly the colour of the frond, with a p' 
margin. Hoffm. t.i). f. 2. Hjit 
2, aitrellus. Frond hardly any; Ihields difperfed, minute, yellowilhj '' 
thin paler mirgin. Ho§m t. 2. c. 
j. Reropeus. Efful'e, irregular, flighily cracked, mealy, pale yellow : 
very minute, rather convex, yellow with a paler margin. 
Frond foliaceous, fomewhat membranous, deprrJJ'ed, Jiellatii 
orlefs imbricate, fibrous underneath. Circinaria. 
melanajpis. Cruftaceo-membranous, llellate, glaucoiis greyr ip 
tifh with grey fibres underneath : fegments of the circurni^ .jjj 
in many linear divifionsi fhields convex, black, with a 
d. 
tl' 
Ipeciojus. Cartilagino-membranous, fiellate, glabrous, bltieift''*., i'' 
/I 
what imbricate 
margin. 
fnowy with grey fibres underneath : fegments deeply^ jjijei 
many linear divillons, obtufe, margined, liightly ciliate- ^ 
rufous brow'n, with an infledied (lightly crenate margit' A ^ii'^ 
lophyreus. Membranous, llellate, glabrous, white, black n® '' pji/ 
hollow dots underneath: fegments narrow, many-cR* ’ g,)ti' 
Ihields reddilh, with an infledled neaty 
ieptaJeus. Somewhat membranous, llellate, greyilb, benea cl' j 
with black-brown fibres; fegments linear, flexiious, 
ciliate with fibres: Ihields black, with a flightly crenate 
white margin. Z); 7 /. / 20./. 46. A. B, ^ feA 
tyclojelis. Somewhat membranous, llellate, grey'g‘^“‘'‘^'^^(5 
what fpongy with black fibres underneath : 
imbricate, flattiil), many-cleft, cut, (lightly lobed, ''V 
ratbf.r /.ftaec • fliipl/tc K lai'h - hrriw n . with alt tttt 
rather mealy edges ; fltields black-brown, wi 
margin becoming creniilaie. Hofi'm t.o.f. t. 
margin at the bafe. 
*cajius. Crufiaceo-membranous, (lellate, grey ifli- white, grey ^||i' 
blackilh fibres underneath: fegments of the circumference 
crenate: fhields flat, grey-glaucous, becoming blackilh, 
thin raifed (lightly infledted margin. Fng. Bot. t. io 53 ’ . . 
2. duhius. Cruftaceo-membranous, ftellate, glaucous-grey, grey w' ^ 
fibres underneath; fegments fomewhat imbricate, .inear, narrowe ijir 
vex, many-cleft: a little dilated at their tips, becoming ^ 
margin : fhields black-brown, with an entire flightly infletw 
™®rgin. _ 
