Echinodorus macrophyllus
Content
- <<<Flowers>Stamens>Anthers>Length
- <<<Flowers>Stamens>Apex>Shape
- <<<Flowers>Stamens>Filaments>Length
- <<<Inflorescences>Bracts>Apex>Shape
- <<Flowers>Carpels>Carpel number
- <<Flowers>Petals>Dimensions
- <<Flowers>Sepals>Dimensions
- <<Flowers>Sepals>Growth form
- <<Flowers>Stamens>Anthers
- <<Flowers>Stamens>Apex
- <<Flowers>Stamens>Filaments
- <<Flowers>Stamens>Stamen number
- <<Fruits>Beak>Position
- <<Fruits>Glands>Gland number
- <<Fruits>Glands>Shape
- <<Inflorescences>Bracts>Apex
- <<Inflorescences>Bracts>Dimensions
- <<Inflorescences>Bracts>Shape
- <<Inflorescences>Flower number>Flower number per whorl
- <<Inflorescences>Pedicels>Dimensions
- <<Inflorescences>Pedicels>Growth form
- <<Inflorescences>Pedicels>Shape
- <<Inflorescences>Peduncle>Dimensions
- <<Inflorescences>Rachises>Hairs
- <<Inflorescences>Rachises>Shape
- <<Inflorescences>Rachises>Texture
- <<Leaves>Apex>Shape
- <<Leaves>Basal sheaths>Length
- <<Leaves>Base>Shape
- <<Leaves>Blade>Dimensions
- <<Leaves>Blade>Shape
- <<Leaves>Margins>Margin type
- <<Leaves>Petiole>Dimensions
- <<Leaves>Petiole>Hairs
- <<Leaves>Petiole>Texture
- <<Leaves>Veins>Vein number
- <Flowers>Carpels
- <Flowers>Petals
- <Flowers>Sepals
- <Flowers>Stamens
- <Flowers>Width
- <Fruits>Beak
- <Fruits>Dimensions
- <Fruits>Glands
- <Fruits>Growth form
- <Fruits>Keel number
- <Fruits>Length
- <Fruits>Rib number
- <Fruits>Shape
- <Habit>Hairs
- <Habit>Height
- <Habit>Rhizome
- <Habit>Stolons
- <Inflorescences>Bracts
- <Inflorescences>Flower number
- <Inflorescences>Growth form
- <Inflorescences>Pedicels
- <Inflorescences>Peduncle
- <Inflorescences>Rachises
- <Inflorescences>Whorl number
- <Leaves>Apex
- <Leaves>Basal lobes
- <Leaves>Basal sheaths
- <Leaves>Base
- <Leaves>Blade
- <Leaves>Colour
- <Leaves>Margins
- <Leaves>Pellucid markings
- <Leaves>Petiole
- <Leaves>Veins
- Description
- Distribution
- Flowers
- Fruits
- Habit
- Individuals Association
- Inflorescences
- Leaves
- Notes
- Phenology
Description
Herb, perennial, to 200 cm tall, glabrous or stellate-pubescent; rhizome present; stolon absent. Leaves emerged, green-brown, petiole ridged, stellate-pubescent toscabrous, 17-41 x 0.3-0.5 cm, basal sheath to 15 cm long, blade ovate to ovate-elliptic, 8.5-41 x 4.9-26 cm, margin entire, apex acute to round-ovate to retuse, base cordate to truncate, basal lobes present, veins 7-11, pellucid markings absent. Inflorescence paniculate or rarely racemose, erect, with 7-14 whorls, overtopping leaves, not vegetatively proliferating; whorls with 8-20 flowers; peduncle ridged, not winged, 28.5-50 x 0.3-1 cm; rachis between whorls triangular, not winged, stellate-pubescent toscabrous; bracts shorter than pedicel subtended, coarse, elliptic, 3-25 x 2.5-4 mm, apex acute, not dilated basally; pedicels in flower and fruit spreading, cylindrical to triangular, 0.4-3.5 x 0.03-0.08 cm. Flower 1.5-2.5 cm wide; sepals in flower and fruit spreading, 4.1-4.5 x 3.5-5.8 mm, with 19-25 veins, not papillose; petals not clawed, 6.4-10.5 x 4.5-7.4 mm; stamens 18-21, filaments 0.5-1.5 mm long, anthers versatile, 0.7-1.5 mm long, apex obtuse; carpels 30 or more. Fruit flattened, obovate, 2.3-2.8 x 1-1.5 mm, 2-4-ribbed, slightly 1-keeled, glands 1-2(-5), linear-elliptic, between ribs, lbeak lateral, erect, 0.5-1 mm long.
Distribution
Guianas present, Guyana present, S Nicaragua present, Southern America: Bolivia (Bolivia present); Colombia (Colombia present); Paraguay (Paraguay present); Venezuela (Venezuela present), Suriname present
from S Nicaragua, Colombia, Venezuela, Guyana and Suriname, S to Bolivia, Brazil and Paraguay; 40 collections were examined, 9 from the Guianas (GU: 7; SU: 1; FG: 1).
Individuals Association
Guyana, Jenman 5272
Guyana, Rupununi Distr., Jerome’s Place, Jansen-Jacobs et al. 5037
Richard s.n.
Guyana, near New Amsterdam, Jenman 5080
Guyana, Moka Moka Cr., near Kanuku Mts., Goodland 812
Guyana, Brazil, Rio de Janeiro, Porto d'Estrella, Sellow s.n.
Suriname, S of Clara polder, Lanjouw & Lindeman 3144
Guyana, Berbice, Jenman 5162
Guyana, Upper Takutu Distr., Rupununi R., S of Wichabai, Horn & Wiersema 10103
Guyana, Rupununi Distr., Aishalton, Stoffers & Görts et al. 425
Inflorescences
Inflorescence paniculate or rarely racemose, , with whorls, overtopping leaves, not vegetatively proliferating;74
74. 003
Notes
The specimen of E. macrophyllus subsp. macrophyllus , listed by Haynes & Holm-Nielsen (1994: 57) as originating from Guyana, is from Brazil.
Jonker (1968: 378) treatsE. grandiflorus (Cham. & Schltdl.) Micheli var. floribundus (Seub.) Micheli (= E. grandiflorus subsp. aureus (Fassett) R.R. Haynes & Holm-Niels. ) as occurring in Suriname. The only specimen he mentions, however, belongs to E. macrophyllus subsp. scaber .
In the Guianas only: subsp. scaber (Rataj) R.R. Haynes & Holm-Niels.
Jonker (1968: 378) treats
In the Guianas only: subsp. scaber (Rataj) R.R. Haynes & Holm-Niels.