Compilation
Potamogeton preussii

27 Images see all

Previous
Next

Name

Identification
Potamogeton octandrus Poir. [family POTAMAGETONCEAE ] (stored under name); Verified by Kaplan,Z., Potamogeton preussii A.Benn. [family POTAMAGETONCEAE ]
Related name
  • Potamogeton panormitanus
  • Potamogeton pusillus
  • Potamogeton friesii
  • Potamogeton preussii
  • Potamogeton javanicus
  • Potamogeton octandrus

Flora

Entry for POTAMOGETON Preussii Arth. Bennett. [family POTAMOGETONACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical Africa, Vol 8, page 215, (1902) Author: (By C. H. Wright.)
Names
POTAMOGETON Preussii Arth. Bennett. [family POTAMOGETONACEAE]
Information
Stems branched, semiterete, striate. Leaves all similar, linear for 2/3 of their length, then tapering, acute and acuminate, 1 1/2–2 1/2 in. long, 1/16– 3/32 in. broad, generally curved from the base to the apex towards the stem, stiffer in texture than most of the gramineum series, 3-nerved; central nerve of 5–9 closely packed veins with anastomosing cross veins; stipules persistent, 1/2 the length of the internodes, acute, with many fine veins. Peduncles 1–2 in. long, slender, slightly tapering upwards; spike 1/4– 3/8 in. long, dense-flowered. Perianth-segments rhombic-orbicular. Fruit small, slightly compressed, with a central beak, keels almost obsolete.
Distribution
Cameroons Upper Guinea Preuss, 451! Staudt, 462!Eritrea Nile Land in the Gorge of Degerra, near Saganeita, 7200 ft., Schweinfurth & Riva, 896!Abyssinia Nile Land near Adowa, Schimper, 179! Amba Sea, Schimper, 570! Shireh Province, Quartin-Dillon & Petit, 571!
Notes
Schweinfurth refers his 896 to P. pusillum, and also 769 (collected at Acrur in Eritrea), which I have not seen. This plant has been named P. javanicus, Hassk., but its affinities are with P. Hillii, Morong, and P. acutifolius, Link, on the one side, and P. foliosus, var. californicus, Morong, on the other; more remotely (in foliage only) with P. javanicus, Hassk. A specimen in herb. Boissier. (Yemen, Arabia, Deflers) may be referred here, but the material is poor.

Related Materials