Geissomeria tetragona Lindau
-
Authority
Wasshausen, Dieter C. & Wood, John R. I. 2004. Acanthaceae of Bolivia. Contr. U. S. Natl. Herb. 49: 1-152.
-
Family
Acanthaceae
-
Scientific Name
-
Type
Type: Brazil, Mato Grosso, Lindman A. 3167 (lectotype S, here chosen). Fig. 13.
-
Description
Description - Herb or subshrub 0.8-1.5 m; younger stems puberulous; leaves petiolate, blades long-oblong, 12-22 x 3-5.5 cm, membranous, glabrous, narrowed at base and decurrent on petiole, margin entire; inflorescence 4-angled spikes, terminal and axillary, erect, pedunculate; bracts red, lanceolate, 5 x 2.5 mm, margin entire; bracteoles 2.4x1 mm; calyx 5-lobed, lobes subequal, stiff, margin hyaline; corolla red, tube 25 mm long, puberulous, limb subregular, short, lower lip 3-lobed, lobes dark-red, upper lip 2-lobed, lobes obtuse, 1 mm long, dark-red; stamens 4, subdidynamous; anthers 1-thecous, apically bearded and adglutinate; capsule thick, oval, nitid; seeds 4.
Phenology - It flowers throughout the dry season from March to October.