1898 ] 
aie eet hl ee 
I, Fago- 
nia 
cretica 
2. Guaja- 
cum 
3. Porlie- 
ria 
4. Pintoa 
5. Bulne- 
sia 
FLORA OF LOWER SONORAN AND ARID ZONES 
n zone, 
North, pecan 
var. Calz- 
Chak: 
Hi, Son 
olta , 
seek 
Mexico. 
W. Indies, S. 
Brazil, northern 
S: Amer 
G. officin- 
ale ; Fla,, 
coe 
Guia 
enez., 
B. arbo- 
rea; a 
high tree 
in savan- 
Col. and 
Ven 
doba. 
B. Rearend 
. — — 
B. eae , Cata- 
marca. 
Chili-Argentine xerophytic 
zone 
var. Chilensis,; N. 
Chili (Coquimbo, 
ee Ataca- 
ma, etc. 
var. Pree Que- 
* brada de Gaihu- 
ano. 
> 
P. hygrometrica; 
N. — gle. 
P. Lorensii, Ar- 
gentine peed 
P. Chilensis ; N. 
Chili. 
B. bonariensis ; 
Santiago del 
Estero; west slope 
of Sierra de Cor- 
git , Catamarc 
Ate 
133 
Means of distribution 
Mucilaginous 
seed coat with 
spirally coiled 
projectile rot 
fitted for adhe 
ing when mois- 
tened. 
Thin fleshy exo- 
carp which birds 
No special me- 
chanical device 
for distribution. 
Broad winged 
open, arid step- 
es. : 
