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ACTINIOPTERIS semiflabellata Pic. Serm. [family ACTINIOPTERIDACEAE]

Date Updated: 19 August 2007

Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (1999) Author: B. Verdcourt, B.Sc., Ph.D.
Names
ACTINIOPTERIS semiflabellata Pic. Serm. [family ACTINIOPTERIDACEAE], in Webbia 17: 24, fig. 4/a–d (1962) & Webbia 17: 323, fig. 3/a–d (1963); Schelpe in Contr. Bolus Herb. 1: 86 (1969); Lawalrée, F.C.B., Actiniopteridaceae: 3, t. 1, map 2 (1969); Faden in U.K.W.F.: 43, fig. on 42 (1974); Pic. Serm. in B.J.B.B. 53: 219 (1983); J.E. Burrows, S. Afr. Ferns: 178, t. 28/6, fig. 177, map (1990); Faden in U.K.W.F., ed. 2: 17, t. 169 (1994). Type: Ethiopia, Tertale, wells of El Banno, Corradi 26 (FT-Herb. Pic. Serm., holo., FT, iso.) ACTINIOPTERIS radiata var. b [family ACTINIOPTERIDACEAE], [sensu Hook., Ic. Pl. 10, t. 976, fig. 1–3 (1854) & Cent. Ferns. t. 76, fig. 1–3 (1854), non A. radiata (Sw.) Link] ACTINIOPTERIS radiata [family ACTINIOPTERIDACEAE], [sensu F.D.-O.A.: 45 (1929), pro parte, non (Sw.) Link] ACTINIOPTERIS australis [family ACTINIOPTERIDACEAE], [sensu Tardieu in Fl. Madag. 5(1): 80 (1958), pro parte, & in Fl. Cameroun 3, Ptérid.: 150, t. 20/5–6 (1964), non (L.f.) Link]
Information
Scales of the rhizome of two kinds, entirely light chestnut, or with a narrow thick black shining central stripe and broad light chestnut edges. Fronds homomorphic, after their death becoming dry and having the lamina more or less turned to one side owing to a slight gradual bend of the lamina in its lower part and of the stipe in its upper part. Fertile fronds (2.5–)16–20(–45) cm long, with stipe 1.5–2.5 times as long as the lamina, sparsely scaly. Lamina broadly cuneate to broadly obdeltoid with edges forming an angle of 55–70°, without a median notch, and consisting of a 4–(5) times dichotomous branch system. Branches of the first dichotomy unequal (8.5 and ± 7 mm) forming an angle of about 18–25°; branches of the second dichotomy unequal, the inner (± 8 mm) longer than the outer (± 5 mm); all the dichotomies being in the lower half of the lamina. Segments of the blade 10–25, narrowly ensiform, straight, tapering upwards, ending in a single hardened very sharp point, sometimes bordered by two or three small teeth. Basal part of the lamina glabrous above and sparsely scaly beneath. Scales light fulvous, straight to slightly tortuous, narrowly lanceolate, sparsely and coarsely dentate at the base, piliferous at the apex.
Range
DISTR. U 1–3; K 1–7; T 1–3, 5, 6; Z
Altitude range
sea-level and (135–)700–2050 m
Distribution
UGANDA Karamoja District Moroto R., Feb. 1936, Eggeling 2971!;KENYA Northern Frontier Province Mathews Range, Ngenga, 14 Dec. 1958, Newbould 3196!;TANZANIA Musoma District Naabi Hill, 11 Apr. 1961, Greenway & Myles Turner 10023!;UGANDA Toro District Katwe, Aug. 1941, Eggeling 4514!;UGANDA Mbale District 9.5 km S of Tororo, 17 Feb. 1951, G. Wood 172!KENYA Fort Hall District Thika, 18 Jan. 1948, Bogdan 1498!;KENYA S. Kavirondo District Homa Mt, 2 Dec. 1934, Allen-Turner in C.M. 3608!TANZANIA Mbulu District Lake Manyara National Park, Ndala R. Falls, 8 Dec. 1963, Greenway & Kirrika 11152!;TANZANIA Pare District near Vudee, 30 Jan. 1930, Greenway 2086!;TANZANIA Zanzibar I. , Sept. 1873, Hildebrandt 1104!
Distribution (external)
Egypt Cameroon E Congo (Kinshasa) Rwanda Burundi Sudan Ethiopia Somalia Socotra Namibia Madagascar Réunion Mauritius Arabia Yemen possibly also in E. Nepal
Notes
This species is common in T 1–3 but single specimens have been seen from T 5 and 6 rather resembling A. dimorpha. Although the species has been found on Zanzibar, no specimens have been seen from the mainland coast. Schelpe (1969) stated although Pichi Sermolli (1962) had recognised 5 species it seemed to him that maintaining them at specific level could be questioned, particularly the distinction between A. pauciloba and A. dimorpha. Pichi Sermolli admitted that A. dimorpha is variable and might be a hybrid between A. radiata and A. semiflabellata. Plants from Ethiopia and Kenya referred to A. radiata are known to be apogamous (Manton & Sledge in Phil. Trans. Roy. Soc. London ser. B, 238: 127–185 (1954)). If apogamy is widespread in the genus the maintenance of 5 species will become suspect. Merging the whole lot into one is, however, certainly unsatisfactory. This has been emphasised by many knowledgeable collectors.

Date Updated: 19 August 2007

Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (1999) Author: B. Verdcourt, B.Sc., Ph.D.
Names
ACTINIOPTERIS semiflabellata Pic. Serm. [family ACTINIOPTERIDACEAE], in Webbia 17: 24, fig. 4/a–d (1962) & Webbia 17: 323, fig. 3/a–d (1963); Schelpe in Contr. Bolus Herb. 1: 86 (1969); Lawalrée, F.C.B., Actiniopteridaceae: 3, t. 1, map 2 (1969); Faden in U.K.W.F.: 43, fig. on 42 (1974); Pic. Serm. in B.J.B.B. 53: 219 (1983); J.E. Burrows, S. Afr. Ferns: 178, t. 28/6, fig. 177, map (1990); Faden in U.K.W.F., ed. 2: 17, t. 169 (1994). Type: Ethiopia, Tertale, wells of El Banno, Corradi 26 (FT-Herb. Pic. Serm., holo., FT, iso.) ACTINIOPTERIS radiata var. b [family ACTINIOPTERIDACEAE], [sensu Hook., Ic. Pl. 10, t. 976, fig. 1–3 (1854) & Cent. Ferns. t. 76, fig. 1–3 (1854), non A. radiata (Sw.) Link] ACTINIOPTERIS radiata [family ACTINIOPTERIDACEAE], [sensu F.D.-O.A.: 45 (1929), pro parte, non (Sw.) Link] ACTINIOPTERIS australis [family ACTINIOPTERIDACEAE], [sensu Tardieu in Fl. Madag. 5(1): 80 (1958), pro parte, & in Fl. Cameroun 3, Ptérid.: 150, t. 20/5–6 (1964), non (L.f.) Link]
Information
Scales of the rhizome of two kinds, entirely light chestnut, or with a narrow thick black shining central stripe and broad light chestnut edges. Fronds homomorphic, after their death becoming dry and having the lamina more or less turned to one side owing to a slight gradual bend of the lamina in its lower part and of the stipe in its upper part. Fertile fronds (2.5–)16–20(–45) cm long, with stipe 1.5–2.5 times as long as the lamina, sparsely scaly. Lamina broadly cuneate to broadly obdeltoid with edges forming an angle of 55–70°, without a median notch, and consisting of a 4–(5) times dichotomous branch system. Branches of the first dichotomy unequal (8.5 and ± 7 mm) forming an angle of about 18–25°; branches of the second dichotomy unequal, the inner (± 8 mm) longer than the outer (± 5 mm); all the dichotomies being in the lower half of the lamina. Segments of the blade 10–25, narrowly ensiform, straight, tapering upwards, ending in a single hardened very sharp point, sometimes bordered by two or three small teeth. Basal part of the lamina glabrous above and sparsely scaly beneath. Scales light fulvous, straight to slightly tortuous, narrowly lanceolate, sparsely and coarsely dentate at the base, piliferous at the apex.
Range
DISTR. U 1–3; K 1–7; T 1–3, 5, 6; Z
Altitude range
sea-level and (135–)700–2050 m
Distribution
UGANDA Karamoja District Moroto R., Feb. 1936, Eggeling 2971!;KENYA Northern Frontier Province Mathews Range, Ngenga, 14 Dec. 1958, Newbould 3196!;TANZANIA Musoma District Naabi Hill, 11 Apr. 1961, Greenway & Myles Turner 10023!;UGANDA Toro District Katwe, Aug. 1941, Eggeling 4514!;UGANDA Mbale District 9.5 km S of Tororo, 17 Feb. 1951, G. Wood 172!KENYA Fort Hall District Thika, 18 Jan. 1948, Bogdan 1498!;KENYA S. Kavirondo District Homa Mt, 2 Dec. 1934, Allen-Turner in C.M. 3608!TANZANIA Mbulu District Lake Manyara National Park, Ndala R. Falls, 8 Dec. 1963, Greenway & Kirrika 11152!;TANZANIA Pare District near Vudee, 30 Jan. 1930, Greenway 2086!;TANZANIA Zanzibar I. , Sept. 1873, Hildebrandt 1104!
Distribution (external)
Egypt Cameroon E Congo (Kinshasa) Rwanda Burundi Sudan Ethiopia Somalia Socotra Namibia Madagascar Réunion Mauritius Arabia Yemen possibly also in E. Nepal
Notes
This species is common in T 1–3 but single specimens have been seen from T 5 and 6 rather resembling A. dimorpha. Although the species has been found on Zanzibar, no specimens have been seen from the mainland coast. Schelpe (1969) stated although Pichi Sermolli (1962) had recognised 5 species it seemed to him that maintaining them at specific level could be questioned, particularly the distinction between A. pauciloba and A. dimorpha. Pichi Sermolli admitted that A. dimorpha is variable and might be a hybrid between A. radiata and A. semiflabellata. Plants from Ethiopia and Kenya referred to A. radiata are known to be apogamous (Manton & Sledge in Phil. Trans. Roy. Soc. London ser. B, 238: 127–185 (1954)). If apogamy is widespread in the genus the maintenance of 5 species will become suspect. Merging the whole lot into one is, however, certainly unsatisfactory. This has been emphasised by many knowledgeable collectors.

Date Updated: 19 August 2007

Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (1999) Author: B. Verdcourt, B.Sc., Ph.D.
Names
ACTINIOPTERIS semiflabellata Pic. Serm. [family ACTINIOPTERIDACEAE], in Webbia 17: 24, fig. 4/a–d (1962) & Webbia 17: 323, fig. 3/a–d (1963); Schelpe in Contr. Bolus Herb. 1: 86 (1969); Lawalrée, F.C.B., Actiniopteridaceae: 3, t. 1, map 2 (1969); Faden in U.K.W.F.: 43, fig. on 42 (1974); Pic. Serm. in B.J.B.B. 53: 219 (1983); J.E. Burrows, S. Afr. Ferns: 178, t. 28/6, fig. 177, map (1990); Faden in U.K.W.F., ed. 2: 17, t. 169 (1994). Type: Ethiopia, Tertale, wells of El Banno, Corradi 26 (FT-Herb. Pic. Serm., holo., FT, iso.) ACTINIOPTERIS radiata var. b [family ACTINIOPTERIDACEAE], [sensu Hook., Ic. Pl. 10, t. 976, fig. 1–3 (1854) & Cent. Ferns. t. 76, fig. 1–3 (1854), non A. radiata (Sw.) Link] ACTINIOPTERIS radiata [family ACTINIOPTERIDACEAE], [sensu F.D.-O.A.: 45 (1929), pro parte, non (Sw.) Link] ACTINIOPTERIS australis [family ACTINIOPTERIDACEAE], [sensu Tardieu in Fl. Madag. 5(1): 80 (1958), pro parte, & in Fl. Cameroun 3, Ptérid.: 150, t. 20/5–6 (1964), non (L.f.) Link]
Information
Scales of the rhizome of two kinds, entirely light chestnut, or with a narrow thick black shining central stripe and broad light chestnut edges. Fronds homomorphic, after their death becoming dry and having the lamina more or less turned to one side owing to a slight gradual bend of the lamina in its lower part and of the stipe in its upper part. Fertile fronds (2.5–)16–20(–45) cm long, with stipe 1.5–2.5 times as long as the lamina, sparsely scaly. Lamina broadly cuneate to broadly obdeltoid with edges forming an angle of 55–70°, without a median notch, and consisting of a 4–(5) times dichotomous branch system. Branches of the first dichotomy unequal (8.5 and ± 7 mm) forming an angle of about 18–25°; branches of the second dichotomy unequal, the inner (± 8 mm) longer than the outer (± 5 mm); all the dichotomies being in the lower half of the lamina. Segments of the blade 10–25, narrowly ensiform, straight, tapering upwards, ending in a single hardened very sharp point, sometimes bordered by two or three small teeth. Basal part of the lamina glabrous above and sparsely scaly beneath. Scales light fulvous, straight to slightly tortuous, narrowly lanceolate, sparsely and coarsely dentate at the base, piliferous at the apex.
Range
DISTR. U 1–3; K 1–7; T 1–3, 5, 6; Z
Altitude range
sea-level and (135–)700–2050 m
Distribution
UGANDA Karamoja District Moroto R., Feb. 1936, Eggeling 2971!;KENYA Northern Frontier Province Mathews Range, Ngenga, 14 Dec. 1958, Newbould 3196!;TANZANIA Musoma District Naabi Hill, 11 Apr. 1961, Greenway & Myles Turner 10023!;UGANDA Toro District Katwe, Aug. 1941, Eggeling 4514!;UGANDA Mbale District 9.5 km S of Tororo, 17 Feb. 1951, G. Wood 172!KENYA Fort Hall District Thika, 18 Jan. 1948, Bogdan 1498!;KENYA S. Kavirondo District Homa Mt, 2 Dec. 1934, Allen-Turner in C.M. 3608!TANZANIA Mbulu District Lake Manyara National Park, Ndala R. Falls, 8 Dec. 1963, Greenway & Kirrika 11152!;TANZANIA Pare District near Vudee, 30 Jan. 1930, Greenway 2086!;TANZANIA Zanzibar I. , Sept. 1873, Hildebrandt 1104!
Distribution (external)
Egypt Cameroon E Congo (Kinshasa) Rwanda Burundi Sudan Ethiopia Somalia Socotra Namibia Madagascar Réunion Mauritius Arabia Yemen possibly also in E. Nepal
Notes
This species is common in T 1–3 but single specimens have been seen from T 5 and 6 rather resembling A. dimorpha. Although the species has been found on Zanzibar, no specimens have been seen from the mainland coast. Schelpe (1969) stated although Pichi Sermolli (1962) had recognised 5 species it seemed to him that maintaining them at specific level could be questioned, particularly the distinction between A. pauciloba and A. dimorpha. Pichi Sermolli admitted that A. dimorpha is variable and might be a hybrid between A. radiata and A. semiflabellata. Plants from Ethiopia and Kenya referred to A. radiata are known to be apogamous (Manton & Sledge in Phil. Trans. Roy. Soc. London ser. B, 238: 127–185 (1954)). If apogamy is widespread in the genus the maintenance of 5 species will become suspect. Merging the whole lot into one is, however, certainly unsatisfactory. This has been emphasised by many knowledgeable collectors.
ACTINIOPTERIS semiflabellata Pic. Serm. [family ACTINIOPTERIDACEAE]
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