Pterospora Nutt.

Pinedrops (en)

Genus

Angiosperms > Ericales > Ericaceae

Characteristics

Herbs, achlorophyllous, heterotrophic. Stems absent. Leaves absent. Inflorescences racemes, erect at emergence from soil, axis fleshy and fibrous, persistent after seed dispersal, pink to reddish or brownish, 0.5-1.5 cm diam. proximal to proximalmost flower. Pedicels decurved, somewhat longer in fruit; bracteoles absent. Flowers radially symmetric, nodding; sepals 5, distinct, lanceolate-ovate; petals 5, connate, cream to yellowish or white, without basal tubercles, (surfaces glabrous), corolla urceolate; intrastaminal nectary disc present; stamens 10, included; filaments broader proximally than distally, glabrous; anthers depressed-ovoid to ovoid, with awns, without tubules, dehiscent by 2 oval slits; pistil 5-carpellate; ovary 5-locular; placentation axile; style straight, slender; stigma capitate, without subtending ring of hairs. Fruits capsular, pendulous, dehiscence acropetally loculicidal, no cobwebby tissue exposed by splitting valves at dehiscence. Seeds 100+, ovoid, with broad, rounded, membranous wing attached at 1 end. x = 8.
More
Cor gamopetalous, urceolate, 5-lobed, persistent; stamens 10; filaments flattened, elongate; anthers thick-triangular, somewhat inflexed but not strongly inverted, each pollen-sac opening by a large lateral slit and with a retrorse, filiform appendage at the morphological base; ovary 5-locular; style columnar, short; stigma fleshy, capitate, shallowly 5-lobed; capsule depressed-globose, deeply umbilicate, loculicidal, opening from the morphological base toward the distal end; seeds with a broad terminal wing; pink to reddish or purplish (or eventually brownish) plants with small scale-lvs and long racemes of nodding fls and frs. Monospecific.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
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Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
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Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Pterospora unspecified picture

Distribution

Pterospora world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:27135-1
WFO ID wfo-4000032031
COL ID 74VF
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Pterospora

Lower taxons

Pterospora andromedea