Pleuricospora

A. Gray

Proc. Amer. Acad. Arts 7: 369. 1868 ,.

Etymology: Greek pleurikos, of the side, and spora, sown seed, alluding to parietal placentation
Treatment appears in FNA Volume 8. Treatment on page 396. Mentioned on page 373.

Herbs, achlorophyllous, heterotrophic. Stems absent. Leaves absent. Inflorescences racemes, erect at emergence from soil, axis fleshy but not fibrous, persistent after seed dispersal, cream to yellowish, 1.5–3 cm diam. proximal to proximalmost flower. Pedicels erect, somewhat elongate in fruit; bracteoles absent. Flowers radially symmetric, erect; sepals 4, distinct, lanceolate to ovate; petals 4 (–5), distinct, cream, without basal tubercles, (surfaces glabrous), corolla tubular-cylindric; intrastaminal nectary disc present; stamens 8, included; filaments ± uniformly slender, glabrous; anthers elongate, without awns, without tubules, dehiscent by 2 longitudinal slits; pistil 4 (–6) -carpellate; ovary 1-locular; placentation intruded-parietal; style straight, slender; stigma crownlike, (2 mm diam.), without subtending ring of hairs. Fruits baccate, erect, fleshy, indehiscent. Seeds 25–100, ovoid, not winged. x = 13.

Distribution

w North America

Discussion

Species 1: w North America.

Species 1

Selected References

None.

... more about "Pleuricospora"
elongate +
Gary D. Wallace +
A. Gray +
cream;yellowish +
persistent +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
not fibrous +  and fleshy +
acicular;plane +
coriaceous +
pseudoverticillate +, in basal rosettes +  and alternate +
persistent +  and deciduous +
rotate to crateriform campanulate cylindric globose or urceolate +
w North America +
undifferentiated +
fusiform +
Greek pleurikos, of the side, and spora, sown seed, alluding to parietal placentation +
unisexual +  and bisexual +
indehiscent +
multicellular +
whorled +, , +, opposite +, pseudoverticillate +  and alternate +
persistent +
scale-like +
reduced +
revolute;plane;toothed;entire;revolute;plane;toothed;entire +
parietal +, axile +  and placentation +
intruded-parietal +
tenuinucellate +  and unitegmic +
distinct +
reduced +
not sticky +
4(-6)-carpellate +
Proc. Amer. Acad. Arts +
distinct +
distinct +
lanceolate +  and ovate +
decumbent +  and erect +
peltate +  and capitate +
crownlike +
straight +
slender +
Undefined subfam. Pyroloideae +, Undefined tribe Monotropaceae +  and Undefined tribe Pyrolaceae +
Pleuricospora +
Ericaceae subfam. Monotropoideae +
evergreen +, deciduous +  and perennial +