1790 CRYPTOGAMIA. ALGAE. 1938. Lichen. 
*2. hjfoideu Greenifh-grey, mealy: llalks white, compreffed, 
iipw?rds: tubercles globular, becomingSeluftered. brown, E. But- va’(S 
3. Lignorum, Tartareous, granular-cracked, dirty grey-glaucous: 
fbort, comprefl'ed, broader upwards, whitiili; tubercles convex. 
fimple, blackifh-brown. 
*4. rufus Leprous, granular, grcenilh-grey; llalks greeni(h-grey> 
Ihort, cylindrical: tubercles fmall, niolHv fimple, flattifh, pale rufo^*’ Jy 
5, Sabuletonan. Leprous, greenifh j llalks very fliort : tubercles 
felTilc, flartifb, black. . |^j 
pkcopbyllus. Greenifh-glaiicons, nigged- {rluited, orbicular, 
leafy rounded-lobed crenate circumference: llalks thick, 
preifed, grcenifh-glaucoiis; tubercles fimple, flattifh, dull bro" 
Acbar. t. ^.f.^ . ■/;// 
b. Crujlaceous, effujex tubercles on filhlar inflated moflly ftmpJf 
ft albs. Pycuothele. 
Jolecinus. Granular-lobcd, motife-colour: {talks cylindrIco-in°*^,,, 
gramilar, (impie, greyifb-white: tubercles folitary,rufoiiS'bf‘’' 
Achar. t, . /iH 
c. Fohaceous, cartilugino cruRaceous, hied', tubercles 
frond or nearly Jo. Phyllocarpon- -jl' 
ruhiformis. begments of the lobes roiindifli, crenate, pale 
brown, whitifh beneath and on the margin: tubercles feflile. 
globular, black-brown. Ach t. 
•/• 3 - 
flrepjilis. Pale-grecnilh, pure white and pitted beneath: 
ered, crowded, linear, many-cleft, curled and incurved at 
tubercles marginal and terminal, nearly globular, fmall, elut‘d 
nearly fc/lile, brown. .^^(0 
rpiphyliits. Segments cut crenate, afceiiding, fomewhat inibr' 
greenifh brown, pure white and a little mealy 
tubercles fellile, nearly fimple, at length cluftered, black-br^’ 
citjpiticus. Segments pinuatifid-cut, jagged-curled, rich o 
white bcueatli : tubercles nearly fellile, cluftered, a little 
‘ . . . Jd 
d. I'o/taceous, cartllagino-cruflaceous, imbricate : tubercles jijp 
cylindrical inojilyjodd stalks, which are fimple or divided ^ 
Helopodiiim. 
lii>‘ 
fymphycarbus Segments ciit-crenate, grey greenifli-brown, 
beneath; ftaiks fhort, the colour of the frond, a little 
and {lightly branched at top : tubercles crowded, brown- 
. /• 8 ./. 4 ._ ' 
ejiriQjus, Seginenrs minute*, cut-crenate, whiiifh-green : 
cancelled, rough, whitifti-green, a little pervious and 
at top; tubercles crowded, purplilli -black. Act. Stack. 5- villi’' 
boirytes. Segments cut-crenate, pale greenilh: {talks filtular, 
rugged-granular, branched at top; tubercles rather ““ 
brownilh yellow. coll. 4. l.if.f. 3. 
n'-' 
