Compilation
Ceratophyllum oxyacanthum

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Name

Identification
Ceratophyllum oxyacanthum Cham. [family CERATOPHYLLACEAE ] Verified by Les, D.H., Ceratophyllum demersum L. [family CERATOPHYLLACEAE ] (stored under name); Verified by Not on sheet.,
Related name
  • Ceratophyllum demersum
  • Ceratophyllum oxyacanthum

Flora

Entry for CERATOPHYLLUM demersum Linn. [family CERATOPHYLLACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Capensis
Resource Type
Reference Sources
Entry From
Flora Capensis, Vol 5, Part 2, page 580, (1925) Author: (By S. A. SKAN.)
Names
CERATOPHYLLUM demersum Linn. [family CERATOPHYLLACEAE], Sp. Pl. ed. i. 992;—Smith & Sowerby, Engl. Bot. xiv. t. 947; DC. Prodr. iii. 73; Benth. Fl. Austral. ii. 491; Boiss. Fl. Orient. iv. 1202; Hook. f. Fl. Brit. Ind. v. 639; K. Schum. in Mart. Fl. Bras. iii. iii. 746, t. 125; Hiern in Cat. Afr. Pl. Welw. i. 1031; Durand, Syll. Fl. Congol. 513; Muschler, Man. Fl. Egypt, i. 363; Marloth, Fl. S. Afr. i. 219, fig. 97; Skan in Prain, Fl. Trop. Afr. vi. ii. 326.
CERATOPHYLLUM demersum K. Schum. var. oxyacanthum [family CERATOPHYLLACEAE], in Engl. Pfl. Ost-Afr. C. 178.
CERATOPHYLLUM oxyacanthum Cham. [family CERATOPHYLLACEAE], in Linnæa, iv. 504, t. 5, fig. 6 b; Krauss in Flora, 1844, 426.
CERATOPHYLLUM vulgare Schleid. [family CERATOPHYLLACEAE], in Linnæa, xi. 540, t. 11; Hook. Niger Fl. 525.
Ceratophyllum sp. Wood [family CERATOPHYLLACEAE], Handb. Fl. Natal, 121.
Ceratophyllum Drège [family CERATOPHYLLACEAE], Zwei Pfl. Documente, 160.
Information
a glabrous perennial herb; stems much-branched, floating and submerged, 2–3 ft. sometimes up to 8 ft. long; leaves in whorls of 5–12, 1–3-times (usually twice) dichotomously divided, often about 1 in. long; segments linear to filiform, entire or more or less remotely spinulose-serrulate; perianth-segments oblong, about 1/2 lin. long; fruit ovoid or ellipsoid, slightly compressed, about 3 lin. long, smooth or sparingly covered with minute tubercles, narrowly or broadly winged or wingless, crowned with the long slender often curved persistent style and usually bearing 2 recurved subulate or terete spines at the base. null
Range
Almost cosmopolitan.
Distribution
EASTERN REGION Natal; Umgeni River, Drège, 4457! Wood, 4000! on ranges 30–60 miles from the sea, 2000–3500 ft., Sutherland! Umlaas (Umlazi) River, Krauss, 340!
Notes
For full synonymy see K. Schum. in Mart. Fl. Bras. iii. iii. 746.

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