THE BOTANY OF BERMUDA. 123 
Pteris heterophylla, Linn. 
Luxuriant and abundant at the Church Cave, but not often found 
elsewhere, and confined, as far as the writer’s observation goes, to the 
Walsingham tract. It is a Brazilian and Central American species, 
but occurs in the West Indies also. 
P. aquilina, Linn. Bracken. 
General over the islands; especially abundant in Pembroke marsh. 
Perhaps the most universal of all ferns. 
In addition to the above, Pteris longifolia, Linn.; P. quadri-aurita, 
Retz, and P. serrulata, Linnf., were cultivated at Mount Langton, and 
the first and last set out in suitable localities. 
Acrostichum aureum, Linn. Marsh fern. 
Abundant in brackish marshes, where it attains a great size. A 
fern of wide diffusion, found both in Florida and the West Indies. 
(Chrysodium vulgare, Fée.) 
Woodwardia Virginica, Smith. 
Found only in Pembroke marsh, and not very abundant. The young 
plants have a general resemblance to Osmunda cinnamomea, Linn., but 
may be distinguished at any stage by the loops in the veins parallel to 
the midrib of the pinne, which are radial in Osmunda. It is an Ameri- 
can and not West Indian species. 
Asplenium crenulatum, Fries. 
Found chiefly in the Walsingham tract, and not very common. (A. 
serratum, Lindl.) A species of the West Indies and Central America. 
A. Trichomanes, Linn. 
Generally diffused; common to all northern, temperate, and tropical 
regions. 
A. dentatum, Linn. 
This pretty little fern is generally found at the mouths of caves, both 
in the Walsingham tract and elsewhere. It fills a cave on Grace’s 
Island. It is a native of Florida and the West Indies. 
A. myriophyllum, Presl. (A. cicutarium, Swartz, Sieb., Mart., 360, 
Hook., Metten.; A. rhizophyllum, Kunze, Hook.) 
The rarest of Bermuda ferns; only found about the Church Cave. It 
is certainly not what is usually labeled A. cicutarium in collections. 
It is native to the West Indies and Southern United States. Ahizo- 
