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Project Name Data (Last Modified On 12/18/2012)
 

Flora Data (Last Modified On 12/18/2012)
Genus AMMANNIA L.
PlaceOfPublication Sp. P1. ed. 1. 1:119. 1753.
Synonym Cornelia Ard. Animadv. Specim. 2:9. 1764. Cry ptotheca Blume, in Bijdr. 1128, 1129. 1826. Ditheca Miq. in Fl. Ind. Bat. 1:615. 1855. Diplostemon Miq. loc. cit. 1855. Hapalocarpum Miq. loc. cit. 1855. Ammannella Miq. loc. cit. 618. 1855.
Description Annual herbs, simple or sparsely branched, the young branches obscurely tetragonal. Leaves opposite, sessile. Inflorescence of ( 1- to) several-flowered cymes gathered into axillary clusters; flowers (5-, 6- or) 4-merous, bisexual, actinomorphic. Hypanthium urceolate, appendiculate or exappendiculate, the calyx lobes valvate. Petals present or absent. Stamens of the same or twice the number of calyx lobes or less, inserted about a third from the base of the hypan- thium. Ovary generally 4-carpellary, superior, sessile, the placentation generally axile; ovules many; style sometimes obsolete; stigma capitate. Fruit an irregularly dehiscent ovoid capsule, the hypanthium and style persistent; seeds many, minute.
Habit herbs
Distribution About 20 species. America, Europe, Asia, Africa, Hawaiian and Mariana Islands. Only one indigenous and one introduced species in Panama.
Key a. Petals present; hypanthium appendiculate; stamens exserted. .. 1. A. COCCINEA aa. Petals absent; hypanthium exappendiculate; stamens included .. 2. A. LATIFOLIA
 
 
 
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