Polycarpaea corymbosa
Content
- <<<Capsules>Seeds>Shape>Width
- <<<Sepals>Ovary>Style>Length
- <<<Sepals>Ovary>Style>Sulcus number
- <<<Sepals>Petals>Shape>Length
- <<<Sepals>Stamens>Filaments>Length
- <<<Sepals>Stamens>Filaments>Shape
- <<Capsules>Seeds>Colour
- <<Capsules>Seeds>Seed number
- <<Capsules>Seeds>Shape
- <<Habit>Stems>Growth form
- <<Habit>Stems>Hairs
- <<Habit>Stems>Height
- <<Habit>Stems>Shape
- <<Inflorescences>Pedicels>Hairs
- <<Inflorescences>Pedicels>Length
- <<Leaves>Blade>Dimensions
- <<Leaves>Blade>Hairs
- <<Leaves>Blade>Shape
- <<Leaves>Stipules>Colour
- <<Leaves>Stipules>Length
- <<Leaves>Stipules>Texture
- <<Leaves>Whorls>Leaf number per node
- <<Sepals>Ovary>Shape
- <<Sepals>Ovary>Style
- <<Sepals>Petals>Colour
- <<Sepals>Petals>Petal number
- <<Sepals>Petals>Shape
- <<Sepals>Shape>Length
- <<Sepals>Stamens>Filaments
- <<Sepals>Stamens>Stamen number
- <Capsules>Length
- <Capsules>Seeds
- <Capsules>Shape
- <Habit>Stems
- <Inflorescences>Flower number
- <Inflorescences>Pedicels
- <Leaves>Blade
- <Leaves>Stipules
- <Leaves>Whorls
- <Sepals>Colour
- <Sepals>Ovary
- <Sepals>Petals
- <Sepals>Sepal number
- <Sepals>Shape
- <Sepals>Stamens
- <Sepals>Texture
- Capsules
- Description
- Distribution
- Habit
- Individuals Association
- Inflorescences
- Leaves
- Notes
- Sepals
<Leaves>Blade
blade , , long-aristate with a distinctly differentiated apical arista, , sometimes mucilaginous.37
37. 002-003
Description
Annual, rarely perennial, herb; stems erect, 5- ca. 30 cm tall, terete, often highly branched, flocculose-tomentose above. Leaves in whorls of up to ca. 15(-26) leaves per node; stipules silvery-white, scarious, aristate, multilacerate, 2-5 mm long, persistent; blade linear or linear-subulate, 3-15 x 0.2-0.3 mm, long-aristate with a distinctly differentiated apical arista, glabrous or sparsely pilose, sometimes mucilaginous. Inflorescence a many-flowered, dichasial cyme; pedicels 2-5 mm long, puberulent. Sepals usually 5, silvery-white, lanceolate, 2.5-3.5 mm long, acute to aristate, scarious; petals 5, sordid-white, entire or slightly dentate, obovate or ovate-oblong, 0.5-1 mm long, obtuse or denticulate, much shorter than sepals; stamens 5, filaments flattened, 0.5-1 mm long; ovary obovoid or ovoid-oblong, shortly stipitate, style to 0.5 mm long, 3-sulcate at apex. Capsule ellipsoid or obovoid, 1-2.5 mm long; seeds 2-6, cochleate, ca. 0.5 mm wide, minutely corrugated, pale brown.
Distribution
Guianas present, Tropical and subtropical regions of the Old and New Worlds present
Tropical and subtropical regions of the Old and New Worlds; 23 collections studied, all from the Guianas (GU: 12; SU: 11).
Individuals Association
Guyana, Vicinity of Karanambo, Maas et al. 7693
Suriname, Para Distr., Lobin Savanne, Teunissen et al. LBB 14521
Guyana, Rupununi Northern Savanna, 3 mi S of Meritiziero, Goodland 537
Guyana, Savanna near Oreala, Pulle 533
Suriname, Zanderij I, Archer 2837
Suriname, Tibiti Savanne, Lanjouw & Lindeman 1663
Notes
Several specimens from Guyana and Suriname have been annotated as var. brasiliensis (Cambess.) Chodat & Hassl. by Olga Lakela; this variety, which occurs in Brazil and Paraguay, is said to be a perennial with woody napiform root and strongly revolute leaves, whereas typical P. corymbosa is an annual with fibrous roots from a slender main root and flat or slightly revolute leaves. All specimens seen for this treatment conform to typical P. corymbosa . For a brief discussion of variation in this species, see Lakela (1962).