Aloes and Lilies of Ethiopia and Eritrea

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310 DIOSCOREACEAE Fig. 133. Dioscorea cochleariapiculata, from Adi Arkay, Gonder floristic region. Description described by De Wild in 1914 from a plant collected from Katanga in Congo. It differs from the related species D. dumetorum by having 3–5 nerved leaflets and pubescent perianth and capsules. In contrast, D. dumetorum has 3-nerved leaflets and glabrous perianth and capsules. Climber, closely allied to D. dumetorum, but more vigorous and with larger leaves and flowers. Stems prickly, growing 12–15 m long, densely pubescent when young, later becoming glabrescent. Bulbils often present in the axils of the leaves. Tubers 4–6, globose, renewed annually. Leaves alternate, 3foliolate; petiole up to 28 cm long, prickly; leaflets with petiolule 0.6–0.7 cm long; lateral leaflets asymmetrical, median leaflet obovoid to broadly obovoid, 13–20 × 12–13 cm, acutely acuminate at the apex, cuneate to rounded at the base, conspicuously 3–5nerved from just above the base. Male inflorescences: branched panicles of dense, cylindrical and divergent spikelets, 2–2.5 cm long; peduncle up to 1.5 cm long. Male flowers:
Habitat and distribution Dioscorea dumetorum Description Habitat and distribution DIOSCOREA 311 perianth subglobose c. 1 mm long, densely pubescent; stamens 6. Female inflorescences: pendulous spikes 15–20 cm long, in the axils of leaves. Capsule 5–7 × 2.5 cm, velutinous, reflexed upwards. Seeds with a wing on the basal side only. The species grows in broadleaved deciduous woodland with Adansonia digitata and Boswellia papyrifera, along river valleys between 900 and 1300 m in Tigray and Gonder floristic regions. It also occurs in Tanzania, Burundi, Zaire, Zambia, Malawi, and Zimbabwe. The main flowering period in Ethiopia is from August to September. 3. Dioscorea dumetorum (Kunth) Pax The specific epithet ‘dumetorum’ refers to the thicket (dumetum) habitat in which the plant grows. The species was described as Helmia dumetorum by Kunth in 1850 from plants collected in Tigray floristic region by Schimper. It differs from the related species, D. cochleari-apiculata by the 3-nerved leaflets and the glabrous perianth and mature capsule glabrous. In contrast, D. cochleari-apiculata has 3-nerved leaflets, and perianth and mature capsule pubescent. Prickly twiner or climber, stems growing 8–10 m long. Bulbils in the axils of leaves, prickly, 3–5 cm long, pubescent. Tubers renewed annually with several per plant; each tuber subglobose or cylindrical. Leaves alternate, 3foliolate, pubescent above, tomentose below, rarely glabrescent; petiole 5–20 cm long, generally prickly; petioles, 0.3–1 cm long; lateral leaflets obovate, 5–16 × 3–15 cm, acute to acuminate at the apex, cuneate or rounded at the base, conspicuously 3-nerved from just above the base. Male inflorescences: axillary or terminal, much branched panicles of dense spikes; spikes short, 0.5–1(–1.5) cm long, subsessile or with peduncle up to 0.3 cm long, cylindrical; bracts broadly ovate, adpressed to the perianth and partly concealing it, densely pubescent. Male flowers: perianth subglobose, glabrous, opening little; stamens 6 at least in the first flowers and 5 or fewer in successive ones. Female inflorescences: pendulous axillary spikes, 10–20 cm long. Female flowers: directed downwards, softly tomentose all over; ovary densely pubescent. Capsules directed upwards, 2.5–4.5 × 1.7–2.4 cm, glabrous to sparsely pubescent. Seeds with a wing on the basal side only. The species grows in Combretum-Termi nalia woodland and secondary thickets, and along river valleys between 900 and 1525 m in Tigray, Gonder, Gojam, and Wellega floristic regions in Ethiopia and in Eritrea. It is also
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Aloes and Lilies of Ethiopia and Er
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Front cover: Aloe steudneri Back co
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4 ALOES AND LILIES OF ETHIOPIA Pref
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6 ALOES AND LILIES OF ETHIOPIA Odd
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8 ALOES AND LILIES OF ETHIOPIA Geol
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10 ALOES AND LILIES OF ETHIOPIA Fig
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16 ALOES AND LILIES OF ETHIOPIA Rec
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18 ALOES AND LILIES OF ETHIOPIA (A.
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20 ALOES AND LILIES OF ETHIOPIA 3.
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34 ALOES AND LILIES OF ETHIOPIA The
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36 ALOES AND LILIES OF ETHIOPIA The
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38 ALOES AND LILIES OF ETHIOPIA Wha
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40 ALOES AND LILIES OF ETHIOPIA Key
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42 ALOACEAE ALOACEAE The members of
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44 ALOACEAE Reproduction Chemistry
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46 ALOACEAE Key to the species thei
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48 ALOACEAE - Leaf margin with 8—
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50 ALOACEAE 29. Leaves spreading or
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52 ALOACEAE 49. Leaves strongly rec
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54 ALOACEAE Aloe trichosantha ssp.
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56 ALOACEAE Aloe citrina Descriptio
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58 ALOACEAE Description Habitat and
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60 ALOACEAE Fig. 26. Aloe schoeller
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66 ALOACEAE Habitat and distributio
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68 ALOACEAE Fig 30. Aloe ruspoliana
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70 ALOACEAE Habitat and distributio
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74 ALOACEAE Aloe rugosifolia Descri
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78 ALOACEAE Fig. 37. Aloe percrassa
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80 ALOACEAE Aloe steudneri (24-30 m
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84 ALOACEAE Fig. 42. Aloe trigonant
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86 ALOACEAE Fig. 44. Aloe secundifl
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90 ALOACEAE Fig. 47. Aloe camperi,
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92 ALOACEAE Fig. 48. Aloe adigratan
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94 ALOACEAE Fig. 50. Aloe calidophi
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96 ALOACEAE Fig. 51. Aloe megalacan
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98 ALOACEAE Fig. 52. Aloe gilbertii
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100 ALOACEAE Fig. 54. Aloe ghibensi
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102 ALOACEAE Aloe yavellana Descrip
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104 ALOACEAE Description Habitat an
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106 ALOACEAE Fig. 58. Aloe tewoldei
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108 ALOACEAE Habitat and distributi
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110 ALOACEAE Distribution and class
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112 ASPHODELACEAE Key to genera The
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114 ASPHODELACEAE Kniphofia pumila
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116 ASPHODELACEAE Fig. 61. Kniphofi
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118 ASPHODELACEAE Kniphofia insigni
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120 ASPHODELACEAE Fig. 64 (left): K
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122 ASPHODELACEAE Fig. 66. Bulbine
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124 ASPHODELACEAE Fig. 67. Jodrelli
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126 ASPHODELACEAE Fig. 68. Trachyan
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128 ANTHERICACEAE Chemistry and use
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130 ANTHERICACEAE Key to the specie
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132 ANTHERICACEAE Fig. 69. Antheric
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134 ANTHERICACEAE Habitat and distr
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136 ANTHERICACEAE Key to the specie
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138 ANTHERICACEAE 15. Roots wiry wi
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140 ANTHERICACEAE Chlorophytum long
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142 ANTHERICACEAE Chlorophytum duci
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148 ANTHERICACEAE Fig. 76. Chloroph
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150 ANTHERICACEAE Chlorophytum humi
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152 ANTHERICACEAE Fig. 79. Chloroph
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154 ANTHERICACEAE Chlorophytum subp
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158 ANTHERICACEAE Description Habit
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164 AMARYLLIDACEAE 4. Leaves in a b
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166 AMARYLLIDACEAE Scadoxus nutans
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168 AMARYLLIDACEAE Fig. 82. Scadoxu
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170 AMARYLLIDACEAE Habitat and dist
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172 AMARYLLIDACEAE Conservation Key
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174 AMARYLLIDACEAE Crinum macowanii
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176 AMARYLLIDACEAE Notes Crinum aby
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178 AMARYLLIDACEAE Fig. 87. Ammocha
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180 AMARYLLIDACEAE Fig. 88. Pancrat
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182 AMARYLLIDACEAE Description Habi
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184 HYACINTHACEAE Chemistry and use
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186 HYACINTHACEAE Description Habit
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188 HYACINTHACEAE Dipcadi marlothii
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190 HYACINTHACEAE Fig. 91. Drimiops
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192 HYACINTHACEAE Key to the specie
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194 HYACINTHACEAE Habitat and distr
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198 HYACINTHACEAE Habitat and distr
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200 HYACINTHACEAE Fig. 95. Drimia a
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202 HYACINTHACEAE Fig. 96. Albuca a
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208 ALLIACEAE 5. Umbel without brac
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210 ALLIACEAE Distribution and clas
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212 COLCHICACEAE - Flowers solitary
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214 COLCHICACEAE Gloriosa baudii Fi
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216 COLCHICACEAE Fig. 100. Littonia
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218 COLCHICACEAE Habitat and distri
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220 COLCHICACEAE Key to the species
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222 COLCHICACEAE Habitat and distri
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224 IRIDACEAE Conservation Key to g
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226 IRIDACEAE Key to the species 1.
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228 IRIDACEAE Key to the species an
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230 IRIDACEAE Fig. 104. Moraea schi
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232 IRIDACEAE Fig. 105. Lapeirousia
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234 IRIDACEAE Dierama cupuliflorum
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236 IRIDACEAE Description Habitat a
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240 IRIDACEAE Zygotritonia praecox
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242 IRIDACEAE Key to the species le
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244 IRIDACEAE 15. Flower more than
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246 IRIDACEAE Habitat and distribut
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250 IRIDACEAE Gladiolus dalenii sub
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252 IRIDACEAE Fig. 113. Gladiolus p
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Page 262 and 263: 260 HYPOXIDACEAE HYPOXIDACEAE Withi
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Page 278 and 279: 276 DRACAENACEAE Dracaena afromonta
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Page 292 and 293: 290 ASPARAGACEAE Distribution and c
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Page 308 and 309: 306 DIOSCOREACEAE Use and chemistry
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Aloes and Lilies of Ethiopia and Eritrea

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