358 Transactions. — Botany. 



Plate XXXVIII. 

 Fig. ^3. Fissurina monosporum ; (a) spore, (b) section of apothecium. 



24. Pertusaria fumosa ; (a) section of apothecium, (b) spores in ascus. 



25. Fissurina cyrtospora ; (a) section of apothecium, (b) spores in ascus, (c) spore, 



(d) thallus showing apothecium. 



26. Bacidia minutissima ; (a) section of apothecium, (b) straight spores in ascus, 



(c) arcuate spores in ascus. 



27. Pertusaria leucodes ; (a) section of apothecium, (b and c) two spores X 900, 



(d) spores in ascus X 330. 



28. Bceomyces novce-zealandice ; spores in ascus. 



29. Lecidea clathrata ; (a) section of apothecium, (6) spore. 



30. Arthonia tenuissima; (a) section of apothecium, (b) spore. 



Art. XLIV. — Description of hvo neiv Species of Carex. By D. Petkie, M.A. 

 [Read before the Otago Institute, 30th January, 1883.] 

 Carex littoralis, n, sp, 

 A smooth, tufted species, 1 to 2 feet high. Leaves nearly as long as the 

 culms, sheathing towards the base, very narrow, striate, plano-convex in 

 section, almost smooth, pale green. 



Culms round, smooth, with long leaf-like bracts shortly sheathing at the 

 base. 



Spikelets 4 or 5, uppermost slender, longer, male ; lower female with a 

 few male flowers below, stout, i to ^ inch long, sessile or very shortly 

 peduncled, the peduncle being enclosed by the sheathing base of the bract. 



Glnmes ovate, membranous, dark brown, with lighter three-ribbed mid- 

 rib, produced into a short tapering awn. 



Utricle ovate, turgid, two-ribbed, reddish-brown ; beak short, bifid. 



Arms of style 3 short. 



Hab. Paterson's Inlet, Stewart Island ; Otago Harbour. It appears 

 to be confined to tidal swamps, and low-lying ground about the level of high- 

 water mark. I have never seen it inland or in any other situations than 

 such as are indicated above. Mr. Cheeseman, of the Auckland Museum, 

 informs me that he has this plant from various parts of New Zealand, so 

 tbat it evidently has a wide distribution. 



Carex cheesemanii, n. sp. 



A very slender, densely tufted, pale, rather harsh species. 



Culms 16 inches, or less, rounded, very slender, drooping, elongating 

 greatly during ripening. 



Leaves very numerous, shorter than the culms, very narrow, flattened 

 or plano-convex, scabrid, broad at the bases which sheath the lower parts of 

 the culm. 



