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Aloes and Lilies of Ethiopia and Eritrea

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188 HYACINTHACEAE<br />

Dipcadi marlothii<br />

Description<br />

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

distribution<br />

herbarium specimens, it has been difficult to find any<br />

discontinuity in single characters <strong>and</strong> correlation in<br />

variation among characters, the species have thus been<br />

‘lumped’ to a single species.<br />

The adaptive role <strong>of</strong> tepal appendages is not known.<br />

One might guess that it is related to features <strong>of</strong> the<br />

pollinator. The plants excrete nectar, as all Hyacinthaceae,<br />

<strong>and</strong> might attract insects by smell; as to visual attraction<br />

they are not very impressive, at least not with human<br />

eyes.<br />

2. Dipcadi marlothii Engler<br />

The species epithet is honouring Mr. Mar loth, who<br />

collected the first plants representing this species in<br />

Botswana. It was described by Engler in 1889.The<br />

species is easily distinguished from D. viride by its hairy<br />

leaves <strong>and</strong> tepals without appendages.<br />

Small plants about 15 cm tall. Bulb c. 1.5 cm in diameter. Leaves<br />

filiform, pubescent. Raceme few-flowered. Bracts c. 6 mm, pedicels<br />

c. 3 mm. Tepals up to 15 mm, the outer ones lacking the caudate<br />

appendages otherwise common in the genus. Capsules <strong>and</strong> seeds<br />

not known.<br />

This species grows in bushl<strong>and</strong> on red soils around 830<br />

m, only collected once in the Harerge floristic region.<br />

It has an extremely disjunct distribution in Kenya,<br />

Zimbabwe, Botswana, Namibia <strong>and</strong> South Africa. On a<br />

regional scale, more analyses are necessary to find out<br />

whether the Southern African plants really represent the<br />

same species as the <strong>Ethiopia</strong>n (<strong>and</strong> Kenyan?) ones. The<br />

flowering period in <strong>Ethiopia</strong> is in November.<br />

3. DRIMIOPSIS Lindl. & Paxt.<br />

This genus includes plants that <strong>of</strong>ten have spotted leaves<br />

that are narrowly to broadly lanceolate. The inflorescence<br />

is (sub)­spicate <strong>and</strong> different from all other genera in the<br />

family in that the flowers are not supported by bracts. The<br />

flowers are globular to shortly cylindrical, <strong>and</strong> the three<br />

inner do not open, except for a small apical hole where<br />

insects with a strong proboscis may gain access to the

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