Lasianthus ellipticus Wight

Zhu, H., Roos, M. C. & Ridsdale, C. E., 2012, A taxonomic revision of the Malesian species of Lasianthus (Rubiaceae), Blumea 57 (1), pp. 1-102 : 35-38

publication ID

https://doi.org/10.3767/000651912X652012

persistent identifier

https://treatment.plazi.org/id/1664BC60-3C6F-0D22-FCA2-4D26FE5079DB

treatment provided by

Felipe

scientific name

Lasianthus ellipticus Wight
status

 

40. Lasianthus ellipticus Wight View in CoL

Lasianthus ellipticus Wight (1846) View in CoL 507; Hook.f. (1880) 182; King & Gamble (1904) 118; Ridl. (1923a) 159; K.M. Wong (1989) 372; H.Zhu (2001b) 126. —

Type: Kew Distrib. 2934 (Griffith s.n.) (holo K), Peninsular Malaysia .

Lasianthus venulosus Ridl.(1912) View in CoL 23, non Wight (1846). — Syntypes: Chan Chu Kang 6146 (n.v.), Ridley 12542 (iso K), Bukit Panjang , Singapore.

Lasianthus sordidus Ridl.(1911) 60. — Type: Ridley 14488 (iso K), Peninsular Malaysia, Ulu Temengoh.

Lasianthus scalaris Craib (1933) View in CoL 26; (1934) 216. — Type: Kerr 18809 (holo K; iso BK), Thailand, Puket .

Lasianthus velutinus Ridl.(1920) View in CoL 144;(1923a) 159;K. M. Wong (1989) 372,syn. nov. — Type: Ridley s.n. (holo SING; iso K), Peninsular Malaysia, Kelantan.

Shrubs, 1– 2 m high, branchlets densely hirsute to tomentose. Leaves: blades elliptic or oblong-elliptic, 10–15 by 5 –7 cm, rigid chartaceous to subcoriaceous, usually glabrous above, appressed-hirsute on midrib, nerves and nervules beneath, apex acute to shortly caudate or cuspidate-acuminate, base broadly cuneate to subrounded, midrib slightly depressed above, prominent beneath, nerves and nervules conspicuous or slightly prominent above, prominent beneath, nerves 7–9 pairs, ascending at an angle of c. 50°, curved to the margin, nervules parallel, margin recurved; petioles 0.8 –1.7 cm long, densely hirsute. Stipules broadly triangular, up to 7 mm long, 4.5 mm broad, hirsute. Cymes sessile; bracts conspicuous, up to 9 mm long, linear or lanceolate, densely long-hirsute. Flowers sessile; calyx long-hirsute, tube c. 1 mm long, lobes 5 narrowly triangular, c. 1 mm long, hirsute outside; corolla tube c. 4–5 mm long, glabrous, corolla lobes 5, c. 2 mm long, long-hirsute outside, floccose inside. Drupes subglobose c. 5 mm diam, hirsute; pyrenes 5.

Distribution — Thailand, Malaysia (Peninsular, Borneo), Indonesia (Sumatra, Java).

Note — Lasianthus velutinus is almost the same as L. ellipticus except a little denser tomentose hairs which is not enough to separate it from the latter.

BK

Department of Agriculture

M

Botanische Staatssammlung München

SING

Singapore Botanic Gardens

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Gentianales

Family

Rubiaceae

Genus

Lasianthus

Loc

Lasianthus ellipticus Wight

Zhu, H., Roos, M. C. & Ridsdale, C. E. 2012
2012
Loc

Lasianthus scalaris

Craib 1933
1933
Loc

Lasianthus velutinus

Ridl. 1920
1920
Loc

Lasianthus venulosus

Ridl. 1912
1912
Loc

Lasianthus sordidus

Ridl. 1911
1911
Loc

Lasianthus ellipticus

Wight 1846
1846
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