1888. | BOTANICAL GAZETTE. gi 
III. Asta.—From Asia we have the smallest number 
from any continent except South America, which has the 
same number—six. Of these, only three are peculiar to Asia. 
The species are: 
I, velnta A. Br. (3) I, Olympica A. Br. (3) 
I. hystrix Bory. (4) I. Japonica A. Br. (3) 
I. Durizxi Bory. (4) I, Coromandeliana L. (3) 
The first three have already been discussed as Mediter- 
ranean; of the remainder, the first is from Asia Minor, the — 
second from Japan, and the third from India; illustrating ~ 
again the wide distribution of the genus. 
IV. Ausrravasta has eight species, as follows: 
; Gunnii A. Br. (1) I, alpina er ar 
- L. elatior F, M. (1 I. Muelleri r. 
I, Sturrtii A. Br. (1) . Drummondii A. Br. (2) 
I. Kirkii A. Br. (2) I. tripus A. Br. (8) 
Here again we have a singular example of wide distribu- 
tion: the first three are from Tasmania, I. Kirkii and I. al- 
pina are from New Zealand, I. Muelleri is from Queensland, 
and the last two are from West Australia. 
Soutu AmeErica.—From America south of the isth-— 
mus of Panama we have the six following species: 
E triquetra A. Br. (1) So pacaoren ig er 
- Lrchleri Mett. (1 i cer egal Wee aa” oe 
I. Savatieri rece (8) I. Gardeneriana Kze. (3) 
_ Of these, the first two are from the high Andes of Peru, the fe 
third is from Patagonia, and the remainder are from Brazil. 
VI. Norra America.—Coming lastly to our own coun- 
try, we find the largest representation of Isoetes anywhere : 
fo Nineteen species occur within the limits of orth 
America, including a single species from the West Indies. 
Of these, only the first two are found elsewhere. Omitting 
Varieties, we have: | , 
