Zehneria subcoriacea Y.D. Zhou & Q.F. Wang, 2016

Zhou, Ya-Dong, Mbuni, Yuvenalis, Hu, Guang-Wan, Yan, Xue, Mwachala, Geoffrey & Wang, Qing-Feng, 2016, Zehneria subcoriacea (Cucurbitaceae), a New Species from Kenya, Phytotaxa 277 (3), pp. 282-286 : 282-285

publication ID

https://doi.org/10.11646/phytotaxa.277.3.6

DOI

https://doi.org/10.5281/zenodo.15782978

persistent identifier

https://treatment.plazi.org/id/03DF672D-DB69-FA50-35F1-FA12FAE5FE86

treatment provided by

Felipe

scientific name

Zehneria subcoriacea Y.D. Zhou & Q.F. Wang
status

sp. nov.

Zehneria subcoriacea Y.D. Zhou & Q.F. Wang View in CoL , sp. nov. Fig. 1 View FIGURE 1 & 2 View FIGURE 2 .

Zehneria sp. A ., Jeffrey, Cucurbitaceae , 124: 1967, in Milne-Redhead & Polhill (eds.) Flora of Tropical East Africa.

Climber, glabrous. Leaves sub-coriaceous. Dioecious. Male flowers: petals (4–)5(–6), white, hairy; stamens 3, hairy. Female flowers: petals 5–6(–8), white, hairy; staminodes 3(–5), hairy; stigma 3-lobed. Fruits sub-globose. Seeds ovate, compressed.

Type:— KENYA. Mt. Kenya, West slope, Naro Moru Track, near Met. Station , S 00° 10’ 13.21’’, E 37° 12’ 51.36’’, 3065 m, 27 Jun. 2016, Zhou & Mbuni 16/3 (female) (holotype HIB, GoogleMaps isotypes EA, PE) GoogleMaps ; KENYA. Mt. Kenya, West slope, Naro Moru Track , Hagenia forest, S 00° 10’ 12.28’’, E 37° 13’ 09.63’’, 3136 m, 27 Jun. 2016, Zhou & Mbuni 16/2 (male) (paratypes HIB, EA, PE) GoogleMaps .

Climber ( Fig. 1A View FIGURE 1 , Fig. 2A View FIGURE 2 ), 2–5 m or more long; stems grooved, glabrous except when very young. Tendrils simple, to 20 cm or more long. Leaves ( Fig. 2B View FIGURE 2 ) sub-coriaceous, oblong-ovate, 5–15 × 1.5–7 cm, base rounded to weakly cordate, apex acuminate and apiculate, margins apiculate-toothed, 5(–7)-veined at the base. Petioles 1–2.5(–4) cm long. Dioecious. Male flowers ( Fig. 1 View FIGURE 1 BC, Fig. 2 View FIGURE 2 CD) usually in sessile umbelliform clusters of 5–30; pedicels 5–9 mm long; receptacle-tube campanulate, 3–5 × 3–5 mm, hairy within, calyx-lobes 5(–6), 0.3–0.6 mm long; petals (4–)5(–6), white, becoming cream-yellow when old, lanceolate-ovate, 3–4 × 2–3 mm, hairy; stamens 3, filaments 3–4 mm long, hairy. Female flowers ( Fig. 1 View FIGURE 1 DE, Fig. 2E–G View FIGURE 2 ) usually in sessile umbelliform clusters of 2–20; pedicels 6–10 mm long; ovary sub-globose to slightly fusiform, 2–4 × 3–5.5 mm; receptacle-tube campanulate, 3–4 × 4–5 mm, hairy within, calyx-lobes 5(–6), 0.3–0.6 mm long; petals 5–6(–8), white, become cream-yellow when old, lanceolate-ovate to lanceolate, 4–5 × 2–3 mm, hairy; staminodes 3(–5), 3–5 mm long, hairy; style 4–5 mm long, stigma 2–3 mm wide, 3-lobed. Fruits ( Fig. 1F View FIGURE 1 , Fig. 2H View FIGURE 2 ) in sessile clusters of 2–20, on 6–10 mm long pedicels, sub-globose, 7–12 mm in diameter. Seeds ( Fig. 1G View FIGURE 1 , Fig. 2I View FIGURE 2 ) ovate, compressed, ca. 4 × 2.5 × 1 mm.

Etymology:— The specific epithet “ subcoriacea ” refers to the sub-coriaceous leaves of this new species.

Distribution and habitat: —K3 & K4 ( Fig. 3 View FIGURE 3 ). Montane rain-forest, riverine thickets, Hagenia forest or bamboo zone; 2050–3150 m.

Additional collections:— KENYA. Mt. Kenya, West slope, Naro Moru Track, Hagenia forest, S 00° 10’ 12.28’’, E 37° 13’ 09.63’’, 3136 m, 27 Jun. 2016, Zhou & Mbuni 16/1 (HIB!) GoogleMaps ; KENYA. Mt. Kenya, West slope, Naro Moru Track , near Met. Station, S 0° 10’ 13.21’’, E 37° 12’ 51.36’’, 3065 m, 24 Jul. 2014, SAJIT 002112 (HIB!) GoogleMaps ; KENYA. Gakoe-Kieni Road , ca. 1 km beyond tea plantation on a path into the forest, 15 Dec. 1989, Mungai 179/89 (EA!) ; KENYA. Mt. Kenya, Castle Forest Station, track going east from road ca. 300 m above buildings, S 0°23’, E 37°19’, 2050 m, 20 Oct. 1979, Gilbert 5763 (EA!, K!) GoogleMaps ; KENYA. Nyambeni Hills , N 0°13’, E 37°52’, 2350 m, 25 May 2004, Luke et al. 10285 (EA!, K!) GoogleMaps ; KENYA. Naivasha District , Kinangop, 23 Jul. 1922, Fries 2734 (EA!, K) .

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