REVISION OF THE AUSTRALIAN SPECIES OF POTAMOGETON. 177 
imbricated. Petal- blade small, ea whitish. Capsule ovoid, 
acute, half as long again as the ¢ 
Hab. Cuba, Wright 1519! ane Swartz, Wright! Bertero. 
Amazon Vallee Martius, Spruce 102! Burchell 9394! Andes of 
Peru, Pavon 
(To be continued.) 
REVISION OF THE AUSTRALIAN SPECIES OF 
POTAMOGETON. 
By Arruur ip F.L.S. 
. Tepper, seem to show that the account “of the genus in the 
7th volume of the ‘ Flora Australiensis’ may now be amplified and 
revised. That there at the more to be done, especially in West 
. Poramoceton natans L. (verus). — It is Se to assign 
with any seta ty the published stations given as this species; 
some at least are P. tricarinatus F, Mueller, others are probably P. 
Tepperi mihi. 
2. P. Cuexsemann mihi (Journ. Bot. 1883, p. 66). P. natans L. 
eX = ook es gramineus L. (Hook.).  P. heterophyllus Hook., 
hreb. P. natans y. australis Kirk!—To this I refer —— 
from ae von Mueller (‘* Tasmania, Dr. Story’’). Various states 
of this have been named as ‘“‘gramineus L.,” « heterophyllus Seheb, # 
3. P. prantacineus Du Croz, Vv. Tamaicensis Griseb. Fl. 
is. 
4. QP. ang ge F, Mueller ined. in Herb. Kew ! — Certainly 
from P. natans, under which it is placed at Kew. As Baron 
von Mueller will codbilest describe this, I pass it by with this 
notice. My collection contains specimens from Pea beer from 
. F. M. Bailey. 
5. P. Drummonp1 Benth.! Flor. Austr. vol. 7, p. 171. — An 
endemic species, only gathered by Drummond in West Australia, 
and Prag since found. 
6. P. savanicus Hasskarl in Act. Soc. Neer. 1, 26.— Baron von 
Mueller sends a specimen so named from Moreton Bay, Queensland. 
I have not seen a type-specimen from Java; but it seems distinct 
from P, tenuicaulis Mueller, to which at one time Sa von Mueller 
tenuicalis might be referable. 
Journat or Botany.—Vot. 25. [Junz, 1887.] N 
