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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

Low shrubs or subshrubs, aromatic, conspicuously glandular and setose; leaves opposite, subsessile, ovate to elliptical, entire or few-toothed, usually revolute; inflorescence a terminal thyrse or raceme; calyx zygomorphic, not accrescent, campanulate, 13-nerved, glandular-punctate, 5-lobed (3/2), setose, posterior lobes triangular, largely fused to form a shallowly lobed lip, anterior lobes subulate, slightly upcurved, free above tube, throat hairy; corolla purplish, 2-lipped (1/3), posterior lip entire, anterior lip with median lobe notched, tube straight; stamens 2 fertile (posterior pair reduced to staminodes), included to slightly exserted, filaments glabrous, thecae nearly parallel, asymmetrical (one theca attached higher than other), separate at dehiscence; stigma-lobes unequal; disc symmetrical; nutlets subglobose, smooth, glabrous.  2n = 18.  One species, Stachydeoma graveolens (A. Gray) Small, Florida.  Differs from Hedeoma in chromosome number and asymmetrical anthers.

Distribution

Native to:

78 Southeastern U.S.A.

Publication

Stachydeoma Small, Fl. S. E. United States 1040, 1337 (1903).

Image resource

Royal Botanic Gardens, Kew

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