IX, C, 2 H. and P. Sydow: Fungi from Palawan 171 
formati. Asci cylindracei, octospori, paraphysati. Sporidia 
didyma hyalina. Pycnidiosporae bacillares, continuae, hyalinae. 
HETERODOTHIS LEPTOTHECA Syd. sp. nov. (Fig. 2.) 
Stromatibus sparsis, quo ad formam et magnitudinem varia- 
bilibus, saepe ambitu orbicularibus et 2-6 mm diam., tenuibus, 
subinde valde irregularibus, planis, atris, hypostromate in epi- 
dermide evoluto et ejus cellulas dense ambiente, plus minus 
distincte humiliterque costatis, contextu heterogeneo, partim atro 
opaco indistincte celluloso, partim flavo-brunneo ex cellulis 5-8 
»w longis et 3-4 » latis regulariter seriatis composito; loculis 
numerosis in quoque stromate, discretis, globulosis vel applanato 
globulosis, minutis, 100-150 » diam., extus nitidulis, e stromate 
atro formatis et partibus stromatis flavo-brunnei obtectis, ascis 
sessilibus, cylindraceis, apice obtusis, 38-45 » longis, 4-5.5 yu 
latis, octosporis; paraphysibus filiformibus, ascos longe superan- 
tibus, hyalinis, vix 1 » crassis; sporidiis distichis, cylindraceis, 
utrinque obtusis, medio 1-septatis, non constrictis, hyalinis, 10-13 
Fic. 3. Palawania grandis (Niessl.) Syd. Longitudinal section through a stroma with under- 
lying hypostroma (xX 130). 
» longis, 2.5 » latis; pycnidiosporis bacillaribus, continuis, utrin- 
que obtusis, hyalinis, 4 » longis, 1-1.5 p» latis. 
PALAWAN, Taytay, Merrill 8744, April, 1918. On living leaves of Gly- 
cosmis cochinchinensis. 
The fungus is strongly characterized by the peculiar composition of the 
stromata. These are very flat, usually rounded, but sometimes confluent 
and quite irregular in outline. A good hand lens shows that they are more 
or less distinctly costate on the surface. They are composed of two kinds 
of tissue: a yellow-brown one whose cells are arranged in regular lines, and 
a dark-black one surrounding the yellow stroma (b). The dark stroma por- 
tions which extend into the epidermis and fill up the space between the 
cells, divide and so form the loculi which remain covered by parts of the 
light stroma (d). On the same stromata asci- and pycnidiospore bearing 
loculi are to be found which do not differ from each other. 
PALAWANIA Syd. gen. nov. Dothideacearum. 
(Etym. ab insula Palawan.) 
Stromata ascigera superficialia, minuta vel confluendo majus- 
cula, atra, carbonacea, intus plurilocularia, pluristratosa, radia- 
