Aquarius pubescens (Mart. ex Schult.f.) Christenh. & Byng

Aquarius pubescens (Mart. ex Schult.f.) Christenh. & Byng

DE

Basionym : Echinodorus pubescens (Mart. ex Schult.f.) Seub. ex Warm.^[1]

Synonyms:

Echinodorus ellipticus var. pubescens (Mart. ex Schult.f.) Micheli

Echinodorus macrocarpus Rataj

Echinodorus palifolius var. pubescens (Mart. ex Schult.f.) J.F.Macbr.

Occurrence:

Eastern Brazil.

Ecology

From sea level to 500 m.

Morphology General habit

Perennial, from rhizomes, petioles and stems hairy with simple hairs, up to 120 cm, rhizomes 3 cm diam. Leaves emersed, leaf blade ovate to elliptic, 5 - 9-veined, 10 - 24 cm long, 3 - 11 cm wide, translucent markings absent or present as lines, apex round to acute, base thin to cordate, petioles round, 3 - 35 cm long, c. 5 mm diam., base with sheath up to 10 cm long

Morphology Reproductive morphology Fruits

Fruit oblanceoloid, c. 7-ribbed, glandular, 2.5 - 3.5 mm long, 1.6 mm wide, glands 1 - 3, often severed from the ribs, elliptic, beak end, erect, c. 1 mm.

Morphology Reproductive morphology Inflorescences

Inflorescence racemose or paniculate, of 6 - 18 whorls, each 9 - 15-flowered, erect, overhanging leaves, non-propagative, 20 - 70 cm long, 15 cm wide, leaf blade triangular in cross-section, petioles round, up to 55 cm long , C. 5 mm in diameter, bracts fused at the base, lanceolate, coarse with membranous margins, up to 2 cm long, 5 mm wide, 11 - 16-veined, apex pointed, pedicels spreading, spreading in flowers and fruits, round, 0.5 - 1 cm long , 0.5 mm diam. flowers 1.5 - 2 cm in diameter, sepals erect, 16 - 21-veined, ca. 5 mm long, ca. 4 mm wide, the veins pubescent, petals spreading, white, not clawed, not overlapping, ca. 15 mm long, ca. 14 mm wide, stamens 12, anthers many-sided, ca. 1.5 mm long, filaments c. 1.5 mm long, carpels numerous

Echinodorus macrocarpus was synonymized with E. paniculatus by Haynes & Holm-Nielsen (1994). However, the type specimen (Eugenio 227 RB!) has none of the typical characteristics of E. paniculatus. Instead, E. macrocarpus is here considered specific to E. pubescens due to a number of typical features of E. pubescens: ovate leaves without pellucid markings, large, densely ribbed achenes with 2 - 3 glands and stems covered with simple hairs.

Phenology

Flowering and fruiting from January to July.^[1]

Echinodorus pubescens (Mart. ex Schult.f.) Seub. ex Warm.^[2]
Echinodorus pubescens (Mart. ex Schult.f.) Seub. ex Warm.^[2]
Echinodorus pubescens (Mart. ex Schult.f.) Seub. ex Warm.^[3]
Echinodorus pubescens (Mart. ex Schult.f.) Seub. ex Warm.^[4]
Echinodorus pubescens (Mart. ex Schult.f.) Seub. ex Warm.^[2]

↑ ^1.0 ^1.1 POWO (2021). "Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Im Internet veröffentlicht; http://www.plantsoftheworldonline.org/ Abgerufen am 22. August 2021."
↑ ^2.0 ^2.1 ^2.2 y The New York Botanical Garden (licensed under http://creativecommons.org/licenses/by/4.0/)
↑ Staatliche Naturwissenschaftliche Sammlungen Bayerns. The Vascular Plant Collection at the Botanische Staatssammlung München. Occurrence dataset
↑ by Naturalis Biodiversity Center (licensed under http://creativecommons.org/publicdomain/zero/1.0/)

[:0-1] 1.0 ^1.1 POWO (2021). "Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Im Internet veröffentlicht; http://www.plantsoftheworldonline.org/ Abgerufen am 22. August 2021."

[NYCc-2] 2.0 ^2.1 ^2.2 y The New York Botanical Garden (licensed under http://creativecommons.org/licenses/by/4.0/)

[3] Staatliche Naturwissenschaftliche Sammlungen Bayerns. The Vascular Plant Collection at the Botanische Staatssammlung München. Occurrence dataset

[4] y Naturalis Biodiversity Center (licensed under http://creativecommons.org/publicdomain/zero/1.0/)

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