348 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXIV. 



once or twice forked, lobes oblong, up to 3/4 c m. long and a little less 

 broad. Dorsal surface with a white metallic lustre ; stomata having 6 or 

 6 cells with thick radial walls ; cells of epidermis thin walled ; air-chambers 

 rather wider than those of A. pinguis. Scales triangular or ovate, acumi- 

 nate, produced iuto a filament of a few cells. Caps le only slightly exert- 

 ed, elaters brown, rather closely trispiral, 200-250n, spores deep brown 

 with numerous high conical papillae, 50-55u. Antheridia in 2-4 zigzag or 

 straight rows in the mid-dorsal line on a definite raised naked receptacle. 



Habitat. — Common in Pangie, 8,000 ft. 



GoUamella pusilla, St. (New Phytologi^t, Vol. xiv. No. 1). Garhwal, common. 



Riccia {Ricciella) rohusta, Kashyap. n. sp. 

 ' Moncecious. Thallus very spongy of a yellowish green colour, forming 

 rosettes up to 1^ cm. in diameter, sometimes plants are small and over- 

 lapping ; lobes spreading up to 2 mm. broad. Dorsal surface, flat, the 

 margins often turned upwards, especially before dichotomy, often with a 

 fairly broad median groove ; occasionally in closely creeping plants, the 

 margins are firmly bent ; air-chambers large opening by largo indefinite 

 pores, the large pits on the posterior part being quite visible to the naked 

 eye. Ventral surface greenish, midrib strongly projecting; scale none; 



A X 2. B X 2. 



Fig. 4. — A. B. — Riccia robusta X 2, 



rhizoids both tubercular and smooth. Antheridial papilla not distinct. 

 Sporogonia project ventrally. Spores completely reticulate, — lamellate with 

 a broad toothed .\ing 80u., 4 reticulations in the diameter, opaque when, ripe. 



Habitat. — Lahore, Shalamar garden, common in the cracks between the 

 bricks of the floor of the walks in winter, occasionally on the Ravi banks ; 

 was also seen at Banda. The presence of antheridia is doubtful. A large 

 number of plants were dissected but no papilla were ever observed and only 

 once structures which looked like antheridia were seen. The possibility of 

 parthenogenesis should be kept in mind. The plant wiU be investigated 

 later on. 



Riccia {Ricciella) Cruciata, Kashyap. n. sp. 



Monoecious. Thallus yellowish green, spongy, thin, delicate usually 

 twice forked, with diverging lobes thus forming as a rule cruciform rosettes. 

 Rosettes about 1 cm. in diameter, lobes obovate-oblong with a shallow, 

 narrow mid-dorsal groove. Transverse section oblong, both surfaces almost 

 flat. Scales small, delicate, deciduous, often only as small oblique ridges 

 or absent Rhizoids chiefly smooth, a few tuberculate. Antheridia globular 

 papillae inconspicuous. Sporogonia projecting ventrally. Spores tetrahe- 

 dral, completely reticulate, 60u. 



Habitat. — Common in some cultivated places as the Lawrence garden in 

 Lahore ; occasionally on the Ravi banks ; also seen at Banda on the banks 

 of the Ken. Found in winter. 

 Riccia pathanJwtensis, Kashyap. n. sp. Monoecious. Plants overlapping 



