Botany and Zoology. 127 
8. 
&. elongatum is the most widely dispersed species, viz: in Europe to 
lat. 51°, N. Asia, North and South Afri i Mexico, sud Chili, 
Europe with thirteen species does not possess a single peculiar one, 
ctr speaking, Z. littorale being a Beitr and &. Schleicheri and £. 
trachyodon being regarded as only subspecie 
America contains the greatest number of species Go and those of 
South America are the most peculiar, 2. zylochetum of Peru, and 
£. Brasiliense of Brazil, have the stem 10 feet hi ty oe an inch in 
diameter ; while Z. Martii, found in both these countries, is still more 
i 
, 
—— 
tt Berlin fhaniciorays in 1363, a full list and airancement of the species 
of Marsi lia (as he, with evident correctness, writes the name). He re- 
. 7 
a under their respective sections. 
A. Fruits 8 to 20, placed on recurved peduncles in a single row far up 
the petiole, from the outer edge of which they spring, globose, 
ponte t teeth. 
Sometimes more than half way U 
M. tgs drifolia, L. Connecticut, at ale one known agi where 
was discovered by Dr. T. F. Allen, (Temperate Europe 
Sem macropus, Engelm. (non Hock.) Texas. 
“8 Fruit solitary at the base of each petiole, more or less compressed, 
| with or without teeth. (Peduncles erect or ascending.) 
- AC uncinata, A. Braun. Arkansas, Texas. 
