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Bocconea 20 — 2007 25

THELYPTERIDACEAE
* Christella dentata (Forssk.) Brownsey & Jermy in Brit. Fern Gaz. 10: 338 (1973) [Bas.
Polypodium dentatum Forssk., Fl. Aegypt. Arab.: 185 (1775)]
Reported for Sicily by Derrick & al. (1987) and subsequently by Tutin & al. (1993), however its
locality remains still uncertain. Further surveys are needed. Population size, continuity, and cor-
rect identity are to be verified. – ?R.

* Oreopteris limbosperma (Bellardi ex All.) Holub in Folia Geobot. Phytotax. 4 (1): 49
(1969) [Bas. Polypodium limbospermum Bellardi ex All., Auct. Fl.. Pedem.: 49 (1789)]
Usually considered absent in Sicily. A specimen is however housed in the Herbarium
Mediterraneum Panormitanum sect. Siculum from “loc. M. d’Oro”. In spite of the presence of
Mt. d’Oro on the Madonie Mountains, it is more likely that the specimen has been misidentified
with Mt. d’Oro in Corsica (Marchetti 2005, in litteris). To be excluded.

MARSILEACEAE
24. Pilularia minuta Durieu in Bory & Durieu, Expl. Sci. Algér. Atlas: tab. 38 (1838)
Stagnant waters. – Trapani (Nicotra 1893 b); “luoghi lacustri Trapani” Lojacono (1909); “luoghi
lacustri di Trapani presso Bonagia” (Raimondo & al. 1994). Not collected anymore and perhaps
extinct. Field research is needed. – ?RR.

HYPOLEPIDACEAE

25. Pteridium aquilinum (L.) Kuhn in Kerst., Reise Öst-Afr. 3 (3): 11 (1879) [Bas. Pteris
aquilina L., Sp. Pl.: 1075 (1753)]
Woods, heatlands, uncultivated grasslands, on siliceous ground. – From the hills to the moun-
tains. – CC.

ASPLENIACEAE

26. Asplenium onopteris L., Sp. Pl.: 1081 (1753) [A. virgilii Bory]
Shady rocks, Quercus ilex woods. – Everywhere in hard and broad leaf wood, from hills to the
mountains. – C.

27. Asplenium adiantum-nigrum L., Sp. Pl.: 1081 (1753) [incl. A. adiantum-nigrum var.
cuneifolium Lojac., non A. cuneifolium Viv.; incl. A. pimpinelloides Lojac.]
Rocks, walls, woods. – Everywhere in hard and broad leaf wood, from hills upwards. – C.
28. Asplenium obovatum Viv., Fl. Cors.: 16 (1824) subsp. obovatum [incl. A. obovatum
Viv. subsp. obovatum var. protobillotii Demiriz, Viane & Reichst.]
Shady cliffs. – Capo d’Orlando, Milazzo, Catania, Ustica, Alicuri, Felicuri, Panaria, Vulcano,
Saline, Pantelleria (Gussone 1845); Mandanici (Prestandrea), Messina (Alexander) (Gussone
1845: 885); Linosa (Lojacono 1885); Mascali (Patanè), V.ne Ulli (Nicotra 1893 a); Messina
(Alexader, Tineo, Borzì), Antennammare (Borzì), Salice (Borzì), Milazzo (Gussone, Seguenza),
Mandanici (Prestandrea) (Nicotra 1893 b); Peloritani (Zodda 1900 a); Messina, Finale, Aetna,
Ustica, Isole Eolie, Pantelleria (prob. riferito alla sottospecie seguente!) (Lojacono 1909);
Pantelleria (Sommier 1922); Pantelleria: Bugeber, Khaggiar, Fossa del Russo, Montagna Grande
(Di Martino 1963); Stromboli: Ficogrande (Ferro & Furnari 1968); Vulcano: Casa Villante (Ferro