Howe Ann Unperwoop: Tue Genus RIELLA 217 
RIELLA HELICOPHYLLA (Bory & Mont.) Mont. Ann. Sci. Nat. III. 
18: 12. 1852; Syll. Gen. Sp. Crypt. 94. 1856. 
Duriaea helicophylla Bory & Mont. Compt. Rend. Hebd. 
Acad. Sci. 16: 1116. 1843; Ann. Sci. Nat. III. 1: 229, 
1844. G. L. & N. Syn. Hep. 593. 1846. Mont.; Bory 
& Durieu, Expl. Sci., Algérie, Bot. p/. 34. 1846-49. 
ALGERIA: Province Oran, Durieu, Trabut. 
Exsicc.: Husnot, Hep. Gall. no. 172. 
Rretta Norarisu (Mont.) Mont. Ann. Sci. Nat. II. 18: 12. 
1852; Syll. Gen. Sp. Crypt. 94. 1856. 
Sphaerocarpus Notarisii Mont.; De Not. Mem. R. Accad. 
Tornoe, Fi. 3 449. 0. &F-8. FI t0. 
Duriaea Notarisitti Bory & Mont. Compt. Rend. Hebd. Acad. 
oc 162. 1116. (1643). Bom. Se. sat, Tie 2s 225. 
S44: .G.. 1. @ N. Syn Hep. 30%, Tha. 
SARDINIA: near Pula, De Notarts, 1834. 
GREECE: Phalerus, Chadoisseau, fide Stephani. 
RiELLA Parisi Gottsche; G. & R. Hep. Eur. no. 375. 1867. 
[Illust.] Leitgeb, Untersuch. Hep. 4: 76. pl. 7. f. 17. 
1879. Stephani, Bull. Herb. Boiss. '7: 661. 1899. 
Riella Clausoni[s| Letourneux; Husnot, Hepaticologia Gal- 
lica, 87. pl. 12. f. 151. 1881. Batt. & Trab. Atlas Fl. 
Alg. 1: 13. pl. 8. 1886. . Trab. Rev. Gén. Bot. 3: 452. 
189g. 
ALGERIA: Maison-Carrée, etc., near Algiers, Clawson, Parts, 
Trabut. 
Exsicc.: G. & R. Hep. Eur. no. 375; Husnot, Hep. Gall. 
no, I21. 
Rietta Paurseni Porsild, Bot. Tidsskrift, 24: 323-327. /. 7-3. 
1902. 
TuRKESTAN: Bokhara, Paz/sen, 1898. 
Rrectta Revuterr Mont. Ann. Sci. Nat. III. 18: 12. 1852. Hof- 
meister, Bericht. Verh. Kgl. Sachs. Gesellsch. Wiss. 
1854: 92-95. pl. 4. 
SwITzeERLAND : near Geneva, Reuter, 1851. 
