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Project Name Data (Last Modified On 3/12/2013)

Flora Data (Last Modified On 3/12/2013)
PlaceOfPublication Mem. Am. Acad. Arts Sci., ser. 2, 4: 21. 1849, nom. gen. conserv.
Synonym Malveopsis Presl, Bot. Bemerk. 18. 1844.
Description Herbs or shrubs, the stems erect, the indumentum of simple or stellate or mal- pighiaceous hairs. Leaves petiolate, the blade serrate to deeply lobed or parted. Flowers axillary, solitary or glomerate, or in terminal, few- to many-flowered in- florescences, the individual flowers short-pedicellate to sessile; epicalyx of 3 distinct, narrow, persistent bractlets; calyx 5-lobed, accrescent and foliaceous in fruit; petals 5, obovate-cuneate, -more or less asymmetrically emarginate at the apex, connate at the base and adnate to the base of the staminal tube, yellow; staminal tube di- vided at the apex into few to numerous filaments, the anthers reniform; ovary of many, free, 1-ovulate carpels, the ovules erect or ascending; style branches isomer- ous with the carpels, filiform, the stigmas capitellate. Fruits discoid, composed of 1 whorl of mericarps, these hippocrepiform, incurved-rostrate to muticous, some- times with 1 apical and 2 dorsal awns, nearly indehiscent; seeds glabrous; endo- sperm scanty; cotyledons plicate.
Habit Herbs shrubs
Distribution A genus of about 12 species of tropical and subtropical America, two of which are now widely distributed in both hemispheres and are the only species in Panama.
Note This genus is here treated from the point of view that M. coromandelianum (L.) Garcke (M. carpinifolium A. Gray) is the type species (cf. Kearney, Leafl. West. Bot. 5: 23-24. 1947 & 7: 238-241. 1955, & Am. Midl. Nat. 46: 119-121. 1951).
Key a. Indumentum strigose, the hairs simple and 4-rayed, the rays approximate in pairs (malpighiaceous); flowers axillary, solitary or in glomerules; mericarps provided at the apex with an erect awn and with 2 short, dorsal awns near the middle 1. M. COROMANDELIANUM aa. Indumentum stellate-tomentellous to stellate-puberulus; flowers in dense, ter- minal spikes; mericarps incurved-rostrate at the apex, unarmed - 2. M. AMERICANUM
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