228 Philippine Journal of Science 1917 
Table IV. — Distribution, etc. — Continued. 
Species. 
iRelative abund- 
ance. 
Method of distribution. 
Geographic origin 
and distribution. 
Very rare. I 
[ Rare or local. 
Fairly common. 
Very common and widely 
distributed. 
Eaten by birds. 
Wind. 
Water. 
Organs for adhering. 
Eaten by animals. 
Man. 
Minute seeds. 
Origin. 
Distribution. 
American. 
Asiatic. 
1 Endemic. 
Indo-Malaya. 
Pantropic. 
Vernonia patula* 
X 
X 
X 
X 
X 
X 
X 
X 
Vigna lutea 
X 
X 
X 
Vitex parvijiora 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
X 
Totals 
96 
128 
55 
13 
83 
60+ 
26+ 
14 
39+ 
21 
60 
37 
211 
46 
150 
96 
ANNOTATED LIST OF THE SPECIES OF PTERIDOPHYTES AND SPERMA- 
TOPHYTES FOUND ON VOLCANO ISLAND SINCE THE ERUPTION 
OF TAAL VOLCANO IN 1911 
POLYPODIACEAE 
Acrostichum aureum Linn.* Lagolo. A few plants were observed on 
cliffs in sheltered ravines; none seen near the coast. 
Adiantum caudatum Linn.* Widely scattered on bluffs near the shore. 
Adiantum philippense Linn. Culantrillo. Scattered in shaded ravines. 
Blechnum orientale Linn.* Abundant in some ravines at the northern 
end of the Island. 
Ceropteris calomelanos (Linn.) Und.* Widely distributed on cliffs and 
in ravines, locally abundant; one plant was observed nearly at the 
crater rim, and a few within the crater near the base of the north- 
eastern wall. 
Cheilanthes tenuifolia (Burm. f.) Sw.* Widely scattered on earth banks 
and in ravines. 
Dryopteris parasitica (Linn.) 0. Kuntze.* Rare, a few juvenile plants 
in ravines. 
Hemionitis arifolia (Burm. f.) Moore.* Widely scattered in ravines. 
“ In this list those species marked with an asterisk are additions to the 
list of Taal plants published by Gates in 1914; the dagger indicates those 
species recorded by Gates in 1914 that were not observed on Volcano Island 
in 1916-1917. 
