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Subfamily

VII. Subfam. Nepetoideae (Dumort.) Luerss. (1882).

VII. 2. Tribe Mentheae Dumort. (1827).

VII. 2. B. Subtribe Menthinae (Dumort.) Endl. (1838).

Description

Shrubs or subshrubs with simple or rarely branched hairs ( H. marifolia (Schau.) Epling); leaves gland-dotted, entire or sometimes toothed; inflorescences of 1-3-flowered cymes, sessile or axillary in axils of bracts; bracts usually leaf-like; calyx weakly 2-lipped, 5-lobed (3/2), anterior lip longer than posterior, with deeper sinus between lobes, lobes deltoid-lanceolate or acuminate, not connivent, tube 13-15-nerved, annulate within shortly below lobes; corolla bluish purple, lilac, pink or rarely white, 2-lipped, 5-lobed (2/3), posterior lip weakly bilobed, erect, shorter to slightly longer than anterior lip, tube usually curved and widening broadly above (except in H. marifolia ); stamens 2 (anterior pair usually absent), filaments slightly arcuate, ascending under posterior lip, thecae widely divaricate at 180, distinct, connective strongly developed; style glabrous or rarely hairy; stigma-lobes unequal, posterior shorter; disc symmetrical; nutlets obovoid-oblong, dark brown, finely verrucose, slightly mucilaginous.  2n = 44.  About eight species, southern Brazil and Mexico.

Distribution

Native to:

79 Mexico
84 Brazil

Publication

Hesperozygis Epling, Rep. Spec. Nov. Beih. 85: 132 (1936), rev. reg.; Epling & Stewart, Rep. Spec. Nov. Beih. 115: 12?14 (1939), rev.

Image resource

Royal Botanic Gardens, Kew

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