Echinocystis

Torrey & A. Gray

Fl. N. Amer. 1: 542. 1840.

Common names: Wild or wild mock cucumber wild balsam apple
Endemic
Etymology: Greek echinos, hedgehog, and kystis, bladder, alluding to prickly, hollow fruits
Treatment appears in FNA Volume 6. Treatment on page 18. Mentioned on page 6, 22.
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 TaxonIllustrator 
FNA6 P03 Brandegea bigelovii.jpegBrandegea bigelovii
Echinocystis lobata
Echinopepon wrightii
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey

Plants annual, monoecious, climbing or trailing; stems glabrate; taprooted with branching secondary-roots or roots slender-fibrous; tendrils 3-branched. Leaves: blade depressed-orbiculate to suborbiculate or ovate, palmately (3–) 5 (–7) -lobed, lobes triangular to oblong-triangular, margins entire or serrulate-cuspidate, surfaces eglandular, glabrous or scabrous. Inflorescences: staminate flowers 50–200 in axillary racemes or racemoid panicles; pistillate flowers 1 (–3) from same axils as staminate, peduncles erect at apex; bracts absent. Flowers: hypanthium shallowly cupulate; sepals (5–) 6, filiform, almost pricklelike; petals (5–) 6, connate 1/4 length, white to greenish white, narrowly triangular to linearlanceolate or oblong-lanceolate, 3–6 mm, minutely glandularpuberulent, corolla rotate. Staminate flowers: stamens 3; filaments inserted at corolla base, connate, column 0.4 mm; thecae connate, forming subsessile capitate androecium but not fused into single ring, sigmoid-flexuous, connective broad; pistillodes absent. Pistillate flowers: ovary 2-locular, subglobose; ovules 2 per locule; style 1, nearly vestigial; stigma 3, forming a subglobose head; staminodes absent. Fruits pepos, light green to blue-green, globose-ovoid to ovoid or ellipsoid, bladdery-inflated, symmetric, dry, thin-walled, surface moderately to densely echinate, spinules weak, flexible, whitish-glaucous with green mottling at bases, dehiscence apically irregularly lacerate, sometimes explosively. Seeds 4, broadly oblong-ellipsoid, strongly flattened, not arillate, margins not differentiated, surface slightly pitted-roughened. x = 32.

Distribution

North America

Discussion

Species 1.

Selected References

None.

... more about "Echinocystis"
distinct +  and connate +
Guy L. Nesom +
Torrey & A. Gray +
(3-)5(-7)-lobed;depressed-orbiculate;suborbiculate or ovate +
tubular +, saucer--shaped +, campanulate +  and rotate +
Wild or wild mock cucumber +  and wild balsam apple +
rotate;oblong-lanceolate;oblong-lanceolate;oblong-lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
North America +
Greek echinos, hedgehog, and kystis, bladder, alluding to prickly, hollow fruits +
furrowed +  and echinate +
dehiscent +  and indehiscent +
bristly +, smooth +, hairy +  and glabrous +
tuberculate +  and muricate +
fleshy +  and hard +
pistillate +  and staminate +
light green +  and blue-green +
subglobose +
perennial +
dioecious +  and monoecious +
umbellate;subumbellate +
solitary +, corymbose +, fasciculate +, racemose +  and paniculate +
petiolate +, estipulate +  and simple +
triangular;oblong-triangular +
serrulate-cuspidate +  and entire +
fimbriate +
not differentiated +
subglobose +
induplicate-valvate +  and imbricate +
white;greenish white +
triangular +
Fl. N. Amer. +
slender-fibrous +
not arillate +
flattened +  and oblong-ellipsoid +
filiform +
green mottling +
pliable +  and weak +
whitish-glaucous +
climbing +  and procumbent +
sprawling +  and prostrate +
echinate +  and eglandular +
scabrous +  and glabrous +
Echinocystis +
Cucurbitaceae +
not fused +  and connate +
plant +  and climbing +