Compilation
Hedyotis dichotoma

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Name

Identification
Oldenlandia dichotoma (K.D.Koenig ex Roth) Hook.f. [family RUBIACEAE ] (stored under name); Verified by Hooker, J.D., Oldenlandia dichotoma (K.D.Koenig ex Roth) Hook.f. [family RUBIACEAE ] Verified by Gamble, J.S., Hedyotis dichotoma K.D.Koenig ex Roth [family RUBIACEAE ] Oldenlandia capillaris DC. [family RUBIACEAE ] Oldenlandia biflora L. [family RUBIACEAE ] Oldenlandia linearifolia Thunb. [family RUBIACEAE ]
Related name
  • Oldenlandia affinis
  • Oldenlandia linearifolia
  • Oldenlandia capillaris
  • Oldenlandia microtheca
  • Oldenlandia biflora
  • Hedyotis dichotoma
  • Hedyotis micrantha
  • Oldenlandia herbacea
  • Oldenlandia heynei
  • Oldenlandia dichotoma

Flora

Entry for OLDENLANDIA herbacea var. herbacea [family RUBIACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (1976) Author: B. VERDCOURT
Names
OLDENLANDIA herbacea var. herbacea [family RUBIACEAE], ; Bremek. in Verh. K. Nederl. Akad. Wet., Afd. Natuurk., ser. 2, 48(2): 245 (1952)
Hedyotis herbacea L. [family RUBIACEAE], Sp. Pl.: 102 (1753)
Oldenlandia heynii G. Don [family RUBIACEAE], Gen. Syst. 3: 531 (1834); Oliv. in Trans. Linn. Soc. 29: 84 (1873); Hiern in F.T.A. 3: 59 (1877), pro parte; K. Schum. in P.O.A. C: 376 (1895). Type: India, Heyne (K-WALL. 867,? iso.!)
Hedyotis dichotoma A. Rich. [family RUBIACEAE], Tent. Fl. Abyss. 1: 361 (1847), non Roth., nom. illegit. Type: Ethiopia, Shire (Chiré), Quartin Dillon (P, holo.)
Hedyotis heynii (G. Don) Sond. [family RUBIACEAE], in Fl. Cap. 3: 10 (1865)
Information
Mostly erect annual herbs; flowers small, isostylous, with corolla-tube 2–3.7 mm. long; ovary and capsule glabrous. Fig. 41/31, p. 271.
Range
DISTR. U1–4; K3–7; T1–4, 6–8; P widespread in tropical and southern Africa; also in Asia
Altitude range
0–2160 m.
Distribution
KENYA Trans-Nzoia District 12.8 km. from Kitale on road to Cherangani Hills, 12 Aug. 1961, Symes 760!KENYA Machakos District Mbooni Hills, 9 Oct. 1947, Bogdan 1208!KENYA Kwale District Mariakani, 17 Sept. 1961, Polhill & Paulo 485!TANZANIA Musoma District Majita, Bwasi, 23 Mar. 1959, Tanner 4088!TANZANIA Rungwe Mt., 13 Sept. 1932, Geilinger 2200!TANZANIA Newala, 9 Apr. 1959, Hay 52!TANZANIA Pemba I., Mtangatwani, 30 Aug. 1929, Vaughan 618!UGANDA W. Nile District Koboko, May 1938, Hazel 471!UGANDA Teso District Serere, 26 Oct. 1955, Langdale-Brown 1616!UGANDA Masaka District Sese Is., Bugala I., 8 Oct. 1958, Symes 476!
Notes
Bremekamp has described a var. flaccida (in Verh. K. Nederl. Akad. Wet., Afd. Natuurk., ser. 2, 48(2): 248 (1952)); no type is cited but it is probably meant to be based on Hedyotis trichopoda A. Rich., Tent. Fl. Abyss. 1: 361 (1847), type: Ethiopia, Chiré, Quartin Dillon & Petit (P, holo.). It has leaf-blades up to 2 mm. wide rather than 1 mm. and although extremes can be very marked, e.g. Uganda, Busoga District, Lolui I., 18 June 1953, G. H. Wood 798! variants with longer wider leaves occur sporadically throughout the range of the typical plant and every intermediate occurs; it does not seem worth recognizing.

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