Compilation
Hydrocotyle natans

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Name

Identification
Hydrocotyle adoensis Hochst. [family UMBELLIFERAE ] (stored under name); Hydrocotyle natans Cirillo [family UMBELLIFERAE ] Hydrocotyle ranunculoides L.f. [family UMBELLIFERAE ]
Related name
  • Hydrocotyle natans
  • Hydrocotyle ranunculoides
  • Hydrocotyle adoensis

Flora

Entry for Hydrocotyle ranunculoides L.f. [family UMBELLIFERAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 4, Part 0, page 553, (1978) Author: M. L. Gonçalves
Names
Hydrocotyle ranunculoides L.f. [family UMBELLIFERAE], Suppl. Pl.: 177 (1781).—Robyns & Tournay, Fl. Pare Nat. Alb. 1: 697 (1948).—Cannon in C.F.A. 4: 337 (1970). Type from Mexico.
Hydrocotyle natans Cyr. [family UMBELLIFERAE], Pl. Rar. Regn. Neapol. 1: 20, t. 6b (1788).—Hiern in F.T.A. 3: 5 (1877). Type from Italy.
Hydrocotyle adoensis Hochst. [family UMBELLIFERAE], in Flora 24, Intellig. 1: 28 (1841) nom. nud.
Information
Glabrous creeping herb, densely rooting at the nodes. Stem prostrate with long or short internodes of 1–9 cm., terete and soft. Leaves arising singly at the nodes on petioles 2–25 cm. long; lamina 0·6–4·5 × 1–6 cm., reniform with a deep basal sinus; margin ± crenately divided into 5–8 lobes, each lobe with small secondary crenulations. Umbels simple with 5–10 flowers, subcapitate on peduncles 1·5–5 cm. long, much shorter than the subtending petioles; rays very short to obsolete. Petals greenish-white. Fruit transversely subrectangular, greenish-brown with red mottlings, laterally compressed, shallowly emarginate at the base and apex, somewhat constricted at the commissure; ribs filiform, only weakly developed; stylopodium depressed, styles short, c. 0·75 mm. long, widely divergent.
Habitat
Rooted in marshy ground or free floating in water.
Range
Widely distributed in southern U.S.A., central America and tropical S. America; naturalised in Spain and Italy. In Africa it is known to occur in Ethiopia, Kenya, Uganda, Tanzania, Zaire and Angola in addition to the above localities in Malawi and Zambia.
Distribution
Malawi S Fort Johnston Bar to Nyenyezi, veg. 17.ix.1929, Burtt Davy 21771a (K).Zambia N Luitikila R., L. Bwali, veg. 11.xi.1969, Verboom 2643 (K).

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