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Antherotoma tenuis (A. Fern. & R. Fern.) Jacq.-Fél.

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Synonyms:	Dissotis tenuis A. Fern. & R. Fern.
Common names:
Frequency:
Status:
Description:	Annual herb up to 20 cm high. Stem slender, simple or branched at the base, the branches rather elongate and erect; stems and branches terete, dark reddish, ± appressed-setose, the bristles whitish and bulbous at the base, leafy at the base and below the inflorescence, leafless elsewhere. Leaf-lamina 2–15 x 1.5–9 mm, ovate, rather acute at the apex, entire or slightly crenulate at the margin, attenuated into a petiole 1.5 mm long or contracted at the base, membranous, discolorous (reddish on the upper face, light-green beneath), 3-nerved, ± densely subappressed-setose, the setae white and long. Flowers 4-merous, small, shortly pedicellate, 1–10 in terminal cymes usually arranged in heads that are leafy at the base. Receptacle c. 3 x 2.5 mm, subhemi-spherical, reddish, sparsely setose, the bristles simple, whitish. Sepals c. 3 x 2 mm, persistent or very tardily deciduous, triangular-oblong, ciliate at the margin, stellate-setose at the top, the bristles up to 2.5 mm long. Petals up to 7 x 6 mm, broadly obovate, penicillate-setose at the apex, shortly unguiculate, intensely orange or purple. Stamens 8, very unequal. Shorter stamens: anthers 2 mm long, oblong, obtuse at the top, with a very short pedoconnective produced into a c. 0.25 mm long appendage. Longer stamens: anthers 2 mm long, suddenly contracted into a c. 0.5 mm long beak; pedoconnective 2 mm long, very arched and produced at the base into a 2.5 x 1 mm, 2–3-fid appendage; filaments 2.5 mm long. Ovary sparsely setose at the top; style 5 mm long, strongly curved towards the apex; stigma papillose. Seed c. 0.5 mm in diameter, cochleate, straw-yellow, with minute tubercles disposed in curved, parallel lines.
Type location:	Zambia
Notes:
Derivation of specific name:	tenuis: thin or slender
Habitat:
Altitude range: (metres)
Flowering time:	Mar - Jun
Worldwide distribution:	North western Zambia, DRC and Tanzania
Botanical divisions:
Growth form(s):	Annual.
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Literature:	Fernandes, R. & A. (1978). Melastomataceae Flora Zambesiaca 4 Pages 243 - 244. As Dissotis tenuis (Includes a picture).

Other sources of information about Antherotoma tenuis:

Our websites:

Flora of Zambia: Antherotoma tenuis

External websites:

African Plants: A Photo Guide (Senckenberg): Antherotoma tenuis
African Plant Database: Antherotoma tenuis
BHL (Biodiversity Heritage Library): Antherotoma tenuis
EOL (Encyclopedia of Life): Antherotoma tenuis
GBIF (Global Biodiversity Information Facility): Antherotoma tenuis
Google: Web - Images - Scholar
iNaturalist: Antherotoma tenuis
IPNI (International Plant Names Index): Antherotoma tenuis
JSTOR Plant Science: Antherotoma tenuis
Mansfeld World Database of Agricultural and Horticultural Crops: Antherotoma tenuis
Plants of the World Online: Antherotoma tenuis
Tropicos: Antherotoma tenuis
Wikipedia: Antherotoma tenuis

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