IIICCIA. 491 



I give the drawings sent ; wluitever nuiy be the position of the 

 Italian plant, most of my drawings agree exactly with the French 

 ones. 



Description of Platk CCXX. — Fig. 1 . Plants natural size. 

 2, 3. Fronds, antical view, magnified. 4, 5. Ditto x Hi (J3ar- 

 moiith, J. Kalis). 0-8. Cross-sections x 24 (ditto), i), 10. Ditto 

 (Paimpol, Cotes dii Nord, France, Dr. Avice). 11-13. Ditto 

 (Husn. Hep. Call. n. <}6). 14-lG. Ditto (C. t P. Hep. Brit. 

 Exsicc. n. 290, Barmouth, W. H. P.). 17, 18. Ditto (Florence, 

 Italy, Dr. Levier). 19, 20, 21. Cross-sections, apex, middle, 

 adult, Bicciff Fear-soju, alter IStephani. 22, 23. Ditto, apex, 

 middle, Biccia i/i//r('//fi, after Stephani. 



(). Riccia tumida, Lindenh. 



Tikc'ia tumida, Lindenb. Syn. Hep. Eur. p. ]2(1Sl^;)); Lindenb. Monogr. lliccia, 



p. 4r)'J. t. 27 (18;)(;). 

 /'Iccia Jlichelii, Raddi, var. cili((ris, Levier, Bull. Herb. Bois.s. vol. ii. No. 4, 



p. 230 (1894). 

 L'iccia Jlichelii, Raddi, Stepli. Sp. Hep. p. 1 1 (IDOO). 



Dioicous ?, caespitulose, crowded, minute, bicolorous, light 

 grej'ish-green antically, margin and portion of postical sides deep 

 purple, almost black, maddle yellowish-green. Fronds simple or 

 bifid with segments again slightly divided in some instances, 

 linear or linear-obovate, obtuse at apex, thick, canaliculate, margin 

 thickened, when dry stroni>-lv inflexed : texture fleshy; ciliatc, 

 cilia marginal, biseriate, subulate, hyaline, often swollen at the 

 base ; radiculose, rootlets plentil'ul, long, of equal length. Capsule 

 embedded in the middle of the IVonds, spherical, dark brown. 

 Spores angular-globose, very dark brown, almost black, the plane 

 sides with pale brown border, Jaintly reticulate, convex side 

 irregularly tuberculate, spines shorter and blunter than in Ji. 

 (/I a lie (I. 



Dimensions. — Fronds from 2- mm. to 4- mm. long x -5 mm. to 

 1" mm. broad, '3 mm. to -5 mm. thick ; cilia IG mm. to '25 mm. 

 long X -05 mm. to -08 mm. broad at the base ; rootlets "015 mm. 

 thick • capsule '35 mm. x '4 mm. ; spores '1 mm. x "075 mm. 



