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. pl. 34. 1846–49.
Algeria: Province Oran, Durieu, Trabut.
Exsicc.: Husnot, Hep. Gall no. 172.
Riella Notarisii (Mont.) Mont. Ann. Sci. Nat. III. 18: 12. 1852; Syll. Gen. Sp. Crypt. 94. 1856.
Sphaerocarpus Notarisii Mont.; De Not. Mem. R. Accad. Torino, II. 1: 343. f. d. 1–8. 1839.
Duriaea Notarisii Bory & Mont. Compt. Rend. Hebd. Acad. Sci. 16: 1116. 1843; Ann. Sci. Nat. III. 1: 229. 1844. G. L. & N. Syn. Hep, 593. 1846.
Sardinia: near Pula, De Notaris, 1834.
Greece: Phalerus, Chaboisseau, fide Stephani.
Riella Parisii 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 Gallica, 87. pl. 12. f. 151. 1881. Batt. & Trab. Atlas Fl. Alg. 1:13. pl. 8. 1886. Trab. Rev. Gén. Bot. 3: 452. 1891.
Algeria: Maison-Carrée, etc., near Algiers, Clauson, Paris, Trabut.
Exsicc.: G. & R. Hep. Eur. no. 375; Husnot, Hep. Gall. no. 121.
Riella Paulsenii Porsild, Bot. Tidsskrift, 24: 323–327. f. 1–3. 1902.
Turkestan: Bokhara, Paulsen, 1898.
Riella Reuteri Mont. Ann. Sci. Nat. III. 18: 12. 1852. Hofmeister, Bericht. Verh. Kgl. Sächs. Gesellsch. Wiss. 1854: 92–95. pl 4.
Switzerland: near Geneva, Reuter, 1851.
