124 Rhodora [JuLy 
M. ELATINOIDES Gaudichaud, Ann. Sci. Nat. v. 105 (1825) = M. 
titikakense Remy, Ann. Sci. Nat. sér. 3, vi. 352 (1846). M. elatinoides 
is one of that remarkable group of species confined to southern Aus- 
tralia, Tasmania and New Zealand and America but not known in 
Africa nor Eurasia. Outside the Australian region it has been hereto- 
fore known only as a common Andean species, from the Falkland 
Islands and Tierra del Fuego along the higher Andes to Ecuador. 
In the Pflanzenreich Schindler cites a specimen of Botteri's collected 
somewhere in Mexico, the station not known. The discovery of this 
Australian and Andean species in Oregon! is, therefore, highly import- 
ant and particularly striking as adding another to a small group of 
plants which have followed essentially similar lines of migration. 
Occasionally these Andean plants are also in eastern America, for 
instance Polystichum scopulinum (D. C. Eaton) Maxon. In writing 
elsewhere of the distribution of that and its allies the present writer 
has said: “I refer to P. mohrioides and its allies (fig. 17). There are 
four or five species of this alliance, all plants of the highest degree of 
localization. P. mohrioides and other austral species are known only 
from the Antarctic Prince Edward Islands, 1,200 miles southeast of 
the Cape of Good Hope, from the Falkland Islands, Tierra del Fuego, 
and Patagonia, and as the rarest of isolated species in the Andes. 
In North America we have two species so close to P. mohrioides that 
some authors have considered them inseparable: P. Lemmoni, a 
famous rare species of the mountains of California, Oregon and 
Washington; and P. scopulinum of similar range, though even rarer, 
and found with Pellaea densa on arid mountain-walls of Gaspé County, 
Quebec."? Now that the Andean Myriophyllum elatinoides has been 
found in Oregon, we may, therefore, watch for it with some confidence 
in the Gaspé or Newfoundland waters. 
Schindler cites in the synonymy of M. elatinoides, M. quitense HBK. 
Nov. Gen. et Sp. vi. 89 (1823) and if the identification is confirmed 
M. quitense must be maintained as the earliest name. The descrip- 
tion, however, is not satisfactory, for the plant is described as near 
M. spicatum, with all the leaves immersed and pectinate-pinnatisect. 
Gray HERBARIUM. 
1 Since the above went into type a beautiful sheet of M. elatinoides has been received 
from Prof. Morton E. Peck, collected in Des Chutes River, Oregon, July 27, 1914 (Peck, no, 
5718). 
? Fernald, Am. Jour. Bot. v, 231 (1918). 
