24.03.2013 Views

Aloes and Lilies of Ethiopia and Eritrea

Aloes and Lilies of Ethiopia and Eritrea

Aloes and Lilies of Ethiopia and Eritrea

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

158 ANTHERICACEAE<br />

Description<br />

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

distribution<br />

Chlorophytum<br />

serpens<br />

by Thunberg in 1794 in the genus Anthericum, based on<br />

South African material, <strong>and</strong> transferred to Chlorophytum<br />

by Jacquin in 1862.<br />

Rhizome vertical, short. Roots spongy, long, <strong>of</strong>ten with spindleshaped<br />

tubers. Leaves lax, rosulate, petiolate, lanceolate, most<br />

<strong>of</strong>ten glabrous, sometimes with scabrid margin, 15–60 × 1–5<br />

cm. Peduncles 1–4 to a plant, lax, more or less arcuate, glabrous.<br />

Inflorescence elongated to 75 cm, lax, open, paniculate or simple;<br />

rachis sometimes scabrid; bracts 5–20 mm, acute to acuminate.<br />

Pedicels articulated near or above the middle, (1–) 2–4 at each<br />

node, 4–10 mm long. Perianth, whitish to greenish, tepals patent<br />

to slightly reflexed at anthesis, 4–7 mm long, 3-veined. Stamens<br />

exserted; filaments scabrid, dilated above the middle, longer than<br />

the anthers. Capsule triquetrous, emarginate, <strong>of</strong>ten broader than<br />

long, 3–6 mm. long, 4–8 mm wide. Seeds saucer­shaped, slightly<br />

folded, c. 2–3 mm across. Often producing small plantlets from the<br />

bracts <strong>of</strong> the inflorescence, pseudovivipary.<br />

The species occurs as undergrowth in rain forest <strong>and</strong><br />

riverine forest on brown to black loamy clay, also on<br />

crevices in rocks along streams, sometimes epiphytic,<br />

between 1050 <strong>and</strong> 1900 m from the Illu babor <strong>and</strong><br />

Kefa floristic regions in <strong>Ethiopia</strong>. It is otherwise found<br />

throughout Tropical Africa south to the Cape. It is a<br />

variable species which sometimes has forms with more<br />

dense <strong>and</strong> erect inflorescence, thus resembling C. macrophyllum.<br />

The taxonomy <strong>of</strong> these intermediate forms<br />

should be further investigated. The non­viviparous form<br />

has usually been called C. sparsiflorum. The <strong>Ethiopia</strong>n<br />

po pu lations seem to mix viviparous <strong>and</strong> non­viviparous<br />

forms more or less r<strong>and</strong>omly <strong>and</strong> taxonomic separation<br />

is not justified. Forms <strong>of</strong> C. comosum are common <strong>and</strong><br />

widespread as ornamen tals, sometimes with variegated<br />

(yellowish/greenish striped) leaves. Recent molecular<br />

analyses might indicate that the Southern African plants<br />

(to which the name comosum is attached) do not group<br />

with the <strong>Ethiopia</strong>n plants, in that case the latter will<br />

probably have to be described as a new species. More<br />

studies are necessary.<br />

22. Chlorophytum serpens Sebsebe & Nordal<br />

The species epithet ‘serpens’ means creeping in Latin<br />

(cf. snake = serpent), referring to the trailing habit <strong>of</strong> the<br />

inflorescence, which is rooting at the nodes. The species<br />

is closely related to the widespread heterogenous species

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!