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Subfamily

VI. Subfam. Lamioideae Harley (2003)

Subfam. Stachyoideae (Dumort.) Luerss. (1882); Briq. in Engl. & Prantl (1895) et auct. mult., p.p., typ. incl.

Subfam. Prasioideae (Benth.) Thomé (1889)

Subfam. Pogostemonoideae P.D. Cantino, Harley & Wagstaff in Harley & Reynolds (1992).

Description

Perennial or perhaps sometimes annual herbs, pubescent with simple hairs; leaves toothed, petiolate; inflorescence thyrsoid, usually lax, cymes usually lax, long-pedunculate; bracteoles caducous; calyx 5-lobed (1/4), posterior lobe longer or subequal to laterals (3/2); corolla strongly 2-lipped, 4-lobed (1/3); yellow or sometimes white, posterior lip long, hooded, often deeply concave, often broadened or with 2 teeth at base, anterior lip with median lobe smaller to sometimes larger than side-lobes; stamens not or only shortly exserted, anthers ± long and narrow, thecae becoming confluent; stigma-lobes strongly unequal, posterior lobe minute; nutlets rounded at apex, glabrous.  About 24 spp., mainly forests, hill slopes, mountain grassland, mostly from Nepal and N India to S China, 1 sp. [ M. insuavis (Hance) Prain ex Briq.] also in Vietnam and Indonesia.

Distribution

Native to:

36 China
40 Indian Subcontinent
41 Indo-China
42 Malesia

Publication

Microtoena Prain, Hooker's Icon. Pl. 19: t. 1872 (1889) & Bull. Soc. Bot. France, ser. 3, 42: 417-427 (1895).

Image resource

© Royal Botanic Gardens, Kew

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