Anisophyllea rubroglandula Li Bing Zhang, Xin Chen & H.He, 2015

Chen, Xin, He, Hai & Zhang, Li-Bing, 2015, A monograph of the Anisophylleaceae (Cucurbitales) with description of 18 new species of Anisophyllea, Phytotaxa 229 (1), pp. 448-450 : 448-450

59. Anisophyllea rubroglandula Li Bing Zhang, Xin Chen & H.He , sp. nov. ( Figure 116 )

152 • Phytotaxa 229 (1) © 2015 Magnolia Press

CHEN ET AL.

Type:— MALAYSIA. Sabah: Sandakan, Sg. Wasai, Sample Plot 1, 03 August 1965, W . Meijer 51284 (holotype K!, isotypes L!, SAN!) .

Diagnosis:— Anisophyllea rubroglandula is most similar to A. curtisii in having leaves glandular at least on petioles, but the former has petiole 1.0– 1.5 cm long and leaves most often larger than 13 cm long and 5 cm wide, while the latter has petiole to 0.5 cm long and leaves mostly smaller than 10 cm long, 5 cm wide.

Trees to 30 m tall; trunk with short rounded buttress at base; buds pannose at base with brownish hairs ca. 0.1 mm long, distally glabrous. Leaves dimorphic, internodes between similar types of leaves 1–4 cm, between two adjacent different types of leaves 1.0– 1.5 cm; small leaves caducous, only leaving small scars on young branches; large leaves petiolate, petiole 1.0– 1.5 cm long, 1.6–2.7 mm in diam., sparsely pannose with hairs ca. 0.25 mm long, and glandular with beef-red glands; leaf blade oblong or ovate-elliptic, 13–19 cm long, 5–8 cm wide, base obtuse or slightly acute, apex acuminate or caudate, to 2 cm long, margins often slightly revolute, coriaceous, glabrous and lustrous adaxially, matte and dark-brown when dry abaxially; main longitudinal veins 5–7, springing from blade base, middle three veins (midrib and its adjacent two veins) bold, outermost two veins rather fine and usually disappearing into blade margins if 6–7 main veins present, raised on both surfaces; transverse veins numerous, sub-parallel or irregular, at angles of 65–80° with midrib; veinlets tessellate and slightly prominent on both surfaces. Flowers and fruits unknown.

Flowering and fruiting: —Unknown.

Habitat and distribution: —In rain forests; elevation unclear. Malaysia (Sabah) ( Figure 117 ).

Taxonomic notes: — Anisophyllea rubroglandula looks similar to A. apetala , but it has longer petioles (1.0– 1.5 cm vs. to 0.6 cm in A. apetala ) and very obvious beef-red glands along its petioles. Although we did not see flowers or fruits, the morphology of the leaves of the new species is unique in Malay species of the genus.

The epithet is the combination of two Latin words, rubro- (red) and - glandula (small glands), referring the beef-red glands on the petioles of the new species.

Additional specimens examined: — MALAYSIA. Sabah: Sandakan, Mile 60 Labuk Rd. , 23 August 1963, W . Meijer 37893 ( SAN) .

MONOGRAPH OF ANISOPHYLLEACEAE

Phytotaxa 229 (1) © 2015 Magnolia Press • 153

Figures

FIGURE 116. Anisiophyllea rubroglandula Li Bing Zhang, Xin Chen & H.He. Leafy branch (W. Meijer 51284; isotype, L).

FIGURE 117. Geographical distribution of Anisiophyllea rubroglandula Li Bing Zhang, Xin Chen & H.He.