VII. Subfam. Nepetoideae (Dumort.) Luerss. (1882).
VII. 2. Tribe Mentheae Dumort. (1827).
VII. 2. B. Subtribe Menthinae (Dumort.) Endl. (1838).
DescriptionWeak-stemmed, often semi-scandent shrubs, aromatic, gynodioecious; leaves shallowly toothed to subentire; inflorescence of compound, congested, sometimes 2-3, often pedunculate cymes, in axils of bracts, upper cymes often forming a terminal, spiciform thyrse; bracts leaf-like, becoming reduced toward stem apex; bracteoles inconspicuous; calyx cylindrical, ± actinomorphic, 5-lobed, lobes subulate to narrowly triangular, calyx-tube often externally long-pilose, 13(-12)-nerved, throat hairy; corolla white, or pale lilac, 2-lipped, 5-lobed (2/3), anterior lip with median lobe larger, corolla-tube hairy within, longer to shorter than calyx; stamens 4, didynamous, shorter than corolla, slightly exserted from tube, thecae slightly divergent, distinct, connective slightly dilated; stigma-lobes long, unequal, anterior longer; disc symmetrical, reddish orange; nutlets ovoid, finely reticulate. 2n = 46. Probably less than twelve spp., montane, Andes from Venezuela to Argentina. Species limits are very poorly understood.
82 Northern South America83 Western South America85 Southern South America
Minthostachys (Benth.) Spach, Hist. Veg. Phan. 9: 164 (1840); Epling, Fedde Rep. Spec. Nov. Beih. 85: 162-168 (1936), rev.
Bystropogon sect. Minthostachys Benth. (1834).
© Royal Botanic Gardens, Kew