340 
334. Hirneola polttricha Mont. 
Great Coco, on dead wood. 
Tropics of both hemispheres and Polynesia. 
335. Xylaria clavarioides G. Massee, sp. nov. 
Xylaria (Xylocoryne) stromatibus saepius solitariis rarius in caespiti- 
bus 2—5 connatis cylindraceis, 2—4 cm. altis, J| diam.; extus atris 
papilloso-scabris, intus candidis stipite elongate, coriaceo-suberoso 
nigro-velutino demum nudo; peritheciis clavul® omnino immersis; 
ascis cylindricis, pedicellatis, octosporis ; sporidiis oblique monostichis, 
ellipticis, nigricantibus 10—11 x /x. (Prain n. 45). In lignis pn- 
tridis. 
Great Coco, common on dead stems of Mimusops Uttoralis. 
386. Daldinia veb^^icosa Cos. & de Not. 
Great Coco, on dead wood. 
India, America. 
337. Rhytisma sp. 
In all the islands, on leaves of Ficus hrevicuspis. 
Andamans, (the same species apparently is equally common at Port 
Blair). 
338, -. 
Besides the above there occurs on both islands a Fungus which 
appears to be very widely dispersed throughout the Andamans and 
Nicobars, but has so far been only found as a white mycelium that ap¬ 
pears as a narrow band on the bark of slender branches, runs upwards 
along these and divides into still narrower bands on the branchlets • 
these branch and anastomose and send still narrower bands (threads) 
upwards along the petioles of the leaves and finally spread as a thin 
network on the under surface of the lamina. The writer has found the 
same blight (known to the oflficers at Port Blair as “ thread-blight ”) 
on the following species: Alsodeia hengalensis, OcTina sguarrosa, Bomhax 
insigne, Camellia theifera, Hibiscus rosa-sinensis, Gardenia sp., Fongamia 
glabra, Hiplospora singularis, Blachia andamanica, Ficus nitida ; it is 
also reported to occur on a species of Phalcenopsis. Its effect is in every 
case the same, the leaves affected become yellow and sickly, and as 
regards Ochna among indigenous species and the Tea-plant among 
cultivated species, when affected they become brown and die. The 
blight spreads with great rapidity and for a time threatened the existence 
of the Tea-industry at Port Blair. Brs. Cunningham and Barclay 
have both examined specimens but as there is no sign of any advance 
beyond the mycelial stage the position of the Fungus is at present 
indeterminable. 
150 
