174 The Philippine Journal of Science 1914 
epidermidem ortis, tota basi in pariete exteriore epidermidis 
sessilibus, primitus cuticula dein rupta et plus minus evanes- 
cente obtectis, carbonaceis, superne pluristratose irregulariterque 
radiatim contextis, haud ostiolatis, sed tandem poro rotundo 
apertis, hypostromate inter epidermidis celluas in contextu 
matricis profunde penetrante, strato basali tenuissimo plano 
brunneolo; ascis ovato-oblongis, sessilibus, tenuiter tunicatis, 
apice rotundatis, 26-30 » longis, 14-16 » latis, octosporis; para- 
physibus haud typicis, cellulosis, submucosis, sporidiis tristichis, 
clavulatis, superne rotundatis, deorsum angustioribus, transverse 
3-septatis, non .constrictis, rectis vel lenissime in’ aequilateris 
hyalinis, 14-17 ,» longis, 3.5-4 » crassis. 
Fic. 5. Stigmatedothis palawanensis Syd. a, Longitudinal section through a stroma, showing 
an empty loculus at the left with the cuticula above (x 250) ; b, margin of a stroma 
with hypostroma creeping between the epidermal cells, seen from above (X 250); 
c, ascus (X 600); d, sporidium (xX 250). 
PALAWAN, Taytay, Merrill 8909, May, 1913. On living leaves of Dendro- 
bium. 
This minute fungus can only be placed among the Dothideaceae. The 
hypostroma forms cords of brown hyphe which deeply penetrate between 
the epidermis cells into the tissue of the leaves, but never forming thick 
balls. The stromata are formed beneath the cuticula and are at first wholly 
covered by the cuticule which soon is ruptured and then partly falls away. 
It is not easy to make a good longitudinal section through a fertile stroma, 
as the fungus and the overlying cuticule are too brittle in this stage of 
development. Hence our figure shows only a section through an undevel- 
oped stroma without asci. 
ACTINODOTHIS Syd. gen. nov. Dothideacearum. 
(Etym. actin radius et Dothis, quasi Dothideacea radiatim contexta.) 
Stromata superficialia, orbicularia, discoidea, lenissime con- 
vexa, carbonacea, pluristratosa, radiatim contexta; 1- plurilo- 
