44 
The Philippine Journal of Science 
1916 
Grammitis coriacea Kaulf is described as differing from G. lan- 
ceolatea Sw., in being acutiuscula instead of acuminata, and with 
sori linearihus elongatis instead of costae contiguis subobliquis. 
The type locality is the same for both: “Ins. Mascaren.” The 
two are now treated by all authors as identical. 
LOXOGRAMME (Bl.) Presl 
To Presl’s diagnosis, the following addition is essential : Genus 
ab Eupolypodii section e frondibus simplicibus (Gramittide auct. 
plur.) derivatum. In this section, elongate sori, approaching 
the type of Loxogramme, are found, notably in Polypodium 
magellanicum (Desv.) \_Grammitis magellanica Desv. Berl. Mag. 5 
(1811) 318; P. Billat'dieri (Willd.) C. Chr., non R. Br., best 
known as P. australe Mett., non Fee], and less conspicuously 
in P. dolichosorum Copel. and many other species. In the same 
group the occasional anastomosis of veins is far from rare in 
species or individuals with notably wide fronds. 
The genus is typically Malayan, extending outward as far as 
Africa, Japan, and Polynesia. It is supposed to include also a 
Mexican species, L. Salvinii (Hooker) Maxon. I have included 
this in the key to the species, having no valid reason for not 
doing so. By diagnosis, it is certainly a Loxogramme, and it 
has altogether the appearance of one. Still, I suspect that a 
study more careful than I have been able to give to it and the 
Eupolypodia of the same region will show that it has had a 
separate origin in the parent group, and must therefore not be 
included in the same daughter genus. 
Key to the species. 
1. Fronds very dimorphous. 
2. Fertile frond narrowly linear L. dimorpha Copel. 
2. Fertile frond linear-oblong L. conferta Copel. 
1. Fronds somewhat dimorphous. 
2. Sori parallel to costa or nearly so L. paltonioides Copel. 
2. Sori moderately spreading I. iridifolia (Christ) Copel. 
1. Fronds uniform. 
2. Fronds lanceolate (broadest below the middle) L. Brooksii Copel. 
2. Fronds linear. 
3. Under 20 cm tall I. parallela Copel. 
3. Over 25 cm tall L. linearis Copel. 
2. Fronds linear-oblong, stipitate, small I. africana Copel. 
2. Fronds oblanceolate, broadly or narrowly. 
3. Fronds 1 to 2 cm broad. 
4. Fronds opaque. 
5. Sori costular L. lanceolata (Sw.) Presl. 
5. Sori divergent. 
6. Stipitate 1. Fauriei Copel. 
6. Decurrent L. malayana Copel. 
