ANEUBA. 457 



found on wet dripping perpendicular rocks, frequently growing 

 with Juhula Hutclihu^icB. 



Dr. Scliiffner states that Aueura ^jiwiafifda, Nees, is quite a 

 different species. 



Description of Plate CCIII. — Fig. 1. Plants nat. size. 

 2. Portion of frond magnified. (Isle oF Man, Holt). 3, 4. Cross- 

 section of frond x IG (ditto). 5. Male catkin and young female 

 flower X 24 (Artliog, W. H. P.). 6. Calyptra x IG (ditto). 

 7. Capsule x IG (ditto). 



G. Aneura pinguis (X.), Difiii. 



Marsilea media pingiois, pallide virens, Jlorihus nigricantibus. ad foliorum latera 

 egredientihus, Mich. Nov. pi. gen. p. 5, tab. 4, f. 2 (1720). 



Lichenastrum ccqntidis oblong is ; juxta foliorum divisuras enascentibus, Dill. Hi.st. 

 Muse. p. 509, tab. 74, fig. 42 (1741). 



Jungermania pinguis, Linn. Sp. pi. p. lloG (1753); Hook. JBrit. Jung. t. 4(! 

 (181G). 



Aneura pinguis, Dum. Oomm. Bot, p. 115 (1822). 



Riccardius pinguis, Gray k Benn. Nat. Arr. Brit. PI. 1, p. 084 (1821). 



Dioicous, csespitose or creeping among mosses, of medium 

 size, dark green in colour, turning pale yellowish-green when dry. 

 Fronds decumbent, often imbricate, simple or lobate, oblong- 

 sinuate, plane or concave, apex rounded and obtuse, margii: 

 somewhat undulate ; texture succulent, fleshy, opaque, rigid when 

 dry ; 6 to 8 cells thick near the middle, 1 to 2 near the margin, 

 without nerve ; cells 4-, 5-sided, interior ones hyaline, walls 

 firm, no trigones ; radiculose, rootlets few, minute, short, close, 

 yellowish-white, some fronds rootless. Female flowers proceeding 

 Irom the postical side near the margin ; bracts short, subhemis- 

 pherical, fimbriate. Calyptra linear-oblong, cylindrical, smooth, 

 nearly the same thickness throughout, straight or slightly waved 

 and curved, mouth a little uneven ; pistillidia 7 or 8, small, ovate. 

 Capsule oblong-oval, reddish-brown, striate or furrowed, 4-valvecl, 

 inner layer of cells with 20 to 30 rows of spiral threads, base of 

 capsule (apex of pedicel) composed of 8 x 8 large brown cells ; 

 spores spherical, brown, muriculate, twice the diameter of the 



