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Aloes and Lilies of Ethiopia and Eritrea

Aloes and Lilies of Ethiopia and Eritrea

Aloes and Lilies of Ethiopia and Eritrea

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Description<br />

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

distribution<br />

GLORIOSA LITTONIA 215<br />

Erect herb 20–50 cm high. Corm obovate, 4.5 × 1.0 cm; tunics<br />

brownish. Leaves along the stem, sessile, subopposite to alternate;<br />

leaf­blade linear­elliptic, 5–11 × 0.2–0.8 cm, glabrous to pubescent,<br />

apex attenuate or with tendrils. Flowers solitary; pedicel 3.5–9 cm<br />

long. Perianth bright­red or yellow <strong>and</strong> red, sometimes fused for<br />

4–5 mm at the base; leaf­blade oblanceolate, 2.5–5.5 cm × 4–8<br />

mm. Stamens with filaments 12–23 mm long, anthers 3–7 mm long.<br />

Pistil with style 14–25 mm long with 3­branched stigma, 1.5–2(–3)<br />

mm long. Young fruit 15 mm long.<br />

It grows on stony ground <strong>and</strong> open bush on red s<strong>and</strong>y soil<br />

between 230–900 m in Harerge <strong>and</strong> Gamo G<strong>of</strong>a floristic<br />

regions. The species is thus only known in adjacent areas<br />

in southern <strong>and</strong> south eastern <strong>Ethiopia</strong>, western Somalia<br />

<strong>and</strong> northern Kenya, an area which could be referred to<br />

as the Ethio­Somalia­Kenya triangle <strong>and</strong> which harbour<br />

a number <strong>of</strong> endemics. The main flowering periods in<br />

<strong>Ethiopia</strong> is from October to November, also from March<br />

to May.<br />

2. LITTONIA Hook.<br />

The genus includes climbing geophytes with a small<br />

tuber bearing short spreading lobes. The stems are<br />

usually simple, sc<strong>and</strong>ent or erect. The leaves are cauline,<br />

verticillate below, alternate above, linear to ovate,<br />

attenuated into a ponted apex or recurved tendril. The<br />

flowers are axillary in a cymose inflorescence on the<br />

upper part <strong>of</strong> the stem, on long pedicels. The perianth<br />

segments are equal, persistent, ascending <strong>and</strong> slightly<br />

saccate at the base. The stamens are short <strong>and</strong> filiform.<br />

The style is also short with 3­falcate stigmatic branches.<br />

It is closely related to, or may possibly be congeneric<br />

with, the genus Gloriosa, in general habit <strong>and</strong> in having<br />

leaves ending in tendrils. However, in Gloriosa the style<br />

is sharply bent, while it is straight in Littonia.<br />

The genus consists <strong>of</strong> c. 8 species, occurring mainly<br />

in Africa <strong>and</strong> extending to Arabia. Of these, only one<br />

species is known to occur in <strong>Ethiopia</strong>.

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