Melochia

Linnaeus

Sp. Pl. 2: 674 [as 774]. 1753.

,

Gen. Pl. ed. 5, 304. 1754.

Common names: Broom-wood
Etymology: Arabic melóchich, name for Corchorus olitorius Linnaeus, a salad plant in the East
Synonyms: Moluchia Medikus Physodium C. Presl
Treatment appears in FNA Volume 6. Treatment on page 210. Mentioned on page 202, 208.
 TaxonIllustrator 
FNA6 P23 Ayenia filiformis.jpegAyenia filiformis
Hermannia pauciflora
Melochia corchorifolia
Linny Heagy
Linny Heagy
Linny Heagy

Herbs, annual or perennial, subshrubs, or shrubs [trees], erect, spreading, or decumbent, taprooted. Stems unarmed, hairy, hairs usually simple and/or stellate, sometimes also glandular. Leaves petiolate; stipules usually deciduous, linearlanceolate; blade: margins rarely present; anthers 2-thecate; ovary 5-locular; ovules 2 per locule; styles 5, distinct or basally connate, filiform; stigmas included, decurrent on style, papillose. Fruits capsules, pyramidal and 5-winged, or schizocarps, subglobular and not winged, dehiscence loculicidal, sometimes also septicidal, fruit then falling apart. Seeds 1 or 2 per locule, obovoid, with 2 flat sides and 1 rounded, smooth; endosperm present, fleshy; embryo straight; cotyledon flat. x = 7, 9, 10.

Distribution

c, se United States, Mexico, West Indies, Central America, South America, Asia, Africa, Pacific Islands, Australia, tropical and subtropical areas

Discussion

Species ca. 60 (4 in the flora).

Selected References

None.

Key

1 Inflorescences: bracteoles at base of pedicel; fruits pyramidal, 5-winged, 7–14 mm diam > 2
1 Inflorescences: bracteoles immediately subtending flower; fruits subglobose, not winged, 2.5–6 mm diam > 3
2 Leaf blades glabrous or glabrate, hairs mostly simple; inflorescences usually leaf-opposed; fruits often purple-blotched. Melochia pyramidata
2 Leaf blades tomentulose and canescent, hairs stellate; inflorescences usually axillary; fruits not purple-blotched. Melochia tomentosa
3 Inflorescences spikelike; petals 8–11 mm; flowers dimorphic (pistil and stamens of unequal lengths varying inversely in different plants); fruits capsules. Melochia villosa
3 Inflorescences terminal and axillary, cymose glomerules; petals 3–6 mm; flowers monomorphic (pistil and stamens of equal lengths); fruits schizocarps. Melochia corchorifolia
... more about "Melochia"
Aaron Goldberg† +
Linnaeus +
lobed +  and unlobed +
septicidal +, loculicidal +  and dehiscence +
Broom-wood +
c +, se United States +, Mexico +, West Indies +, Central America +, South America +, Asia +, Africa +, Pacific Islands +, Australia +  and tropical and subtropical areas +
sparse;copious +
Arabic melóchich, name for Corchorus olitorius Linnaeus, a salad plant in the East +
actinomorphic +
unisexual +  and bisexual +
septicidal +, loculicidal +  and dehiscence +
not winged +  and 5-winged +
septicidal +  and loculicidal +
subglobular +  and pyramidal +
antisepalous +, leaf-opposed +, terminal +  and axillary +
connate +  and distinct +
lobed +  and unlobed +
distichous +  and alternate +
entire +, dentate +  and serrate +
5 +  and 4 +
Sp. Pl. +  and Gen. Pl. ed. +
1753 +  and 1754 +
septicidal +, loculicidal +  and dehiscence +
rounded +  and obovoid +
1 +  and 2 +
papillose +
decurrent +
connate +  and distinct +
filiform +
Moluchia +  and Physodium +
Melochia +
Malvaceae subfam. Byttnerioideae +
perennial +  and annual +
shrub +, subshrub +  and herb +
decumbent +, spreading +  and erect +
10 +, 9 +  and 7 +