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Aloes and Lilies of Ethiopia and Eritrea

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216 COLCHICACEAE<br />

Fig. 100. Littonia<br />

revoilii, from<br />

Somalia.<br />

Littonia revoilii<br />

Description<br />

Habitat <strong>and</strong><br />

distribution<br />

Littonia revoilii Franch.<br />

The specific epithet ‘revoilii’ was given in honour <strong>of</strong> one<br />

<strong>of</strong> the collectors, Revoil from whose collection the type<br />

was designated. The species was described by Fran chet in<br />

1882, with the type material collected from Barroz valley<br />

in Somalia. It was also known by the names Littonia hardeggeri<br />

described by Beck in 1888 from Harerge <strong>and</strong><br />

Littonia minor described by Deflers from Arabia.<br />

Erect or sc<strong>and</strong>ent geophyte, 15–35 cm high. Corm ovoid to globose,<br />

c. 1.7 × 1.5 cm. Leaf­blade linear to elliptic, 4.5–8.5 (­10) cm × 4.5<br />

mm; lower ones whorled, upper ones alternate or opposite, sessile,<br />

attenuated into a recurved tendril at the apex. Flowers solitary;<br />

pedicel 2–5 cm long. Perianth segments elliptic, narrowing from the<br />

middle towards the base, reddish-yellow, cream flushed with brown<br />

or yellow; 1.2–2.5 cm × 2–5 mm. Stamens with filaments 8–10<br />

mm long; anthers 3–4 mm long. Ovary with style 6–8 mm long<br />

<strong>and</strong> 3­branched stigma c. 5 mm long. Fruit 3­locular, 15–17 mm<br />

long, many seeded. Seeds ± globose, fleshy when fresh, obovate,<br />

3 × 3 mm.<br />

The ecology <strong>of</strong> the species is poorly known in <strong>Ethiopia</strong>.<br />

It grows on s<strong>and</strong>y <strong>and</strong> stony ground in Somalia. It is only<br />

known from eastern part <strong>of</strong> Harerge floristic region <strong>and</strong><br />

adjacent areas in Somalia, Djibouti, <strong>and</strong> Arabia. The main<br />

flowering period in <strong>Ethiopia</strong> is from October to January,<br />

also from April to May.

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