- 
157 
Lichens. These diminutive pants 
are found in a great variety of forms and 
in abundance in the vicinity of San Die- 
0, and southward along the c»oast 
i The pete and bushes 
+ 
=> —e 
oO ' 
cinity of the sea where subjected to 
influence of frequent fogs or moist ocean 
breezes 
Euphorbia misera, species of Atriplex, 
Lycium, and other gen_ra are thus dec- 
inconspicuous genera 
the tops are festooned and often a aie 
concealed by the luxuriant growth of fo- 
liaceous species, Ramalina, Roccella, &c. 
€ mesas around San |iego are 
lific ia earth forms, the 
V he 
w, black, or white fruits 
and thalli ot Bintows Rinodina, &c. 
‘he pebbles and boulders freely scat- 
tered over these mesas (and these re- 
marks apply with equal force to the me- 
Sas of Baja California, at least as far as 
Lagoon Head) are also brightly colored 
with the thick red fruits of Placodium 
bolacinum, lees black specks known as 
Verrucaria nigrescens, with the large 
black fruit of Lecanora atra with its 
broad white thallus, or with various 
er tint or shade that harmonizes with its 
Surroundings, — contrasting pleasantiy 
with the reddish brown earth or the grey 
colored stones upon which they are com- 
ve seatec 
weather. “stained shingles that 
Mare used to roof the old mission of 
San Diego were highly colored with the 
commoner species of Pa when I first 
knew that historic edi th 
and fences of more see or'gin are sim- 
ilarly decorated, and e prove of great E 
attraction to the botanist as furnishing 
data relative to her fap of growth. 
The West American Scientist.—X. 
158 
The humble home of the ves door 
spider (Cteniza ae fornica), curely 
sak by a neat fitt eee tightly held 
gainst possible in cose: fi is often found 
fai rther Leaeaiea by a luxuriant growt 
of lichens Whether Ge sagacious lady 
ot the nons 
ee 
a full ‘matty after the : 
ho use was built, are que peony which it 
et : 
fs tes idea to have settled 
eet away from the ake proximity 
ctehne e find the rocks it ig- 
celebrated Cantillas canyon, in 
Baja ne are ach yellow, 
“ roc the San Teimo can- 
r San Quintin, Lower <alifornia, 
are aie « with lichens—whitened as if 
they had veen halted by sea er for 
centuries! 
Roccella tinctoria DC. 
R, leucopheea Tuckerman 
R. phycopsis Ach. 
R. fuciformis (L.) ‘ch. 
Ramalina ceruchis De Not. 
R.homalea Ach. 
R. reticulata Krempell 
R. linearis ~ nf. 
R. complana aren 
R. menziesii pice ee 
R. crinita Tichernan. Bull. Too. Cl. 
Evernia vulpina Ach. 
E. prunastri Ach. 
Usnea barbata Fr. 
v. hirta 
Vv. rubiginea Michoe. 
oo 
Data 
U. ochroleuca Fr. 
‘Thelosehistes chrysopthalmus Norm. 
allr. 
P. physodes Ach. 
P; ptt: Ach. 
