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105. Quercus congesta C. Presl in J. & C. Presl, Delic. Prag.: 32 (1822)
Endemic to Sicily, Calabria and Sardinia according to Jalas & Suominen (1976, 3: 77, map 306).
– E – On siliceous substrata in the low mountain and in the mountain belt. – Boschi S. Giorgio,
Castelbuono, Montaspro, Cutò, S. M. del Bosco, Mirto, Tortorici, Etna, Ficuzza, S. Anastasia
(Lojacono 1904); Tra Collesano e Piano Zucchi, Collesano (Brullo 1983); Ficuzza, Madonie,
Etna: Zafferana a Valle S.Giacomo + Aidone + S.Venerina + Bosco di Milo + Monte Maletto +
Contrada Cerrita + Versante nord-occidentale + Sotto Rifugio Citelli, Nebrodi: Valle del Flascio
+ Cerami + Caronia + Sanfratello (Brullo & Marcenò 1984). – NC.

*Quercus humilis Mill., Gard. Dict. ed. 8: n. 4 (1768) [Q. lanuginosa Thuill.; Q. lanugi-
nosa Lam.; Q. pubescens Willd. (1805) non Willd. (1785)]
Siliceous sands in Meso-Mediterranean climate. – “La tipica Q. lanuginosa, se ci è, è molto rara”
(Lojacono 1904). Absent according to Brullo & al. (1999), but recorded by Fl. Europ. 1: 75
(1993). To be verified. – ?R.
106. Quercus leptobalanos Guss., Fl. Sicul. Syn. 2 (2): 608 (1845) [Q. lanuginosa Lam.
var. leptobalanos (Guss.) Gürke]
Included in Q. congesta by several authors (Pignatti 1982; Camus 1936-54; Schwarz 1936-39).
It has been considered an indipendent species by Brullo & al. (1999). – ES – Siliceous in Meso-
Mediterranean climate. – Madonie, Palesciana nel Valdemone, Frazzanò, Ficuzza, ?Messina ai
Bianchi (Lojacono 1904); Tra Collesano e Piano Zucchi (Brullo 1983); Madonie e Bosco di
Ficuzza (Raimondo & al. 1994). – R.
* Quercus sicula Borzì ex Lojac., Fl. Sicul. 2 (2): 374 (1904).
Described by Lojacono (1904) on a single cultivated individual in the Botanical Garden of
Palermo. Similar individuals have never been found in nature. It has to be excluded from Sicilian
flora. According to Brullo & al. (1999) Q. sicula is a later synonym of Q. canariensis Willd., an
Iberian-North African species.
ULMACEAE

107. Ulmus glabra Huds., Fl. Angl.: 95 (1762)
The species of the genus Ulmus are morphologically very variable in Sicily. According to
Raimondo & Schicchi (1989), this genus includes many hybrids. – Mesophylous woods. –
Discovered by Raimondo (1977), but assumed as scattered in almost all the mountain belt of
Northern Sicily. Madonie presso la mulattiera del V.ne Madonia, Stretto Canna, Piano Formaggio
e Madunia, Isnello sul versante settentrionale di Pizzo Carbonara, Petralia Sottana al V.ne
Pisciarotto in C.da Giummeti (Raimondo & Mazzola 1984); Madonie al V.ne Canna (Brullo &
Spampinato 1990); Valle S. Giacomo dell’Etna, Motta Camastra (Spampinato CAT), Ficuzza
(Brullo CAT), Monte Pomiere nella Tassita dei Nebrodi (Minissale CAT); Nebrodi, alla Tassita
(Ilardi & al. 2000) ), Ficuzza Area (Gianguzzi & al. 2004); Etna (Poli Marchese 1996). – RR.

108. Ulmus minor Mill., Gard. Dict. ed. 8: n. 6 (1768)
See note on U. glabra. – Woods, hedges, uncultivated slightly wet ground – Quite common in
the past, but today absent from large areas of the territory. Rare, with the tendency to become
very rare, in Sicily. – RR.
109. Ulmus canescens Melville in Kew Bull. 1957: 499 (1958)
See note on U. glabra. Not distinguished from U. minor before the description provided by
Melville (1958). – Dry and semi-dry woods. – Everywhere in the region. – C.