1. The Botanical Magazine
  2. The Botanical Magazine, Volume IV

Pelargonium Tetragonum

Square Stalked Geranium
Class and Order
Monadelphia Heptagynia
Generic Character
Cal. 5-partitus, lacinia suprema definente in tubulum capillarem, nectariferum, secus pedunculum decurrentem. Cor. 5-petala, irregularis. Filamenta 10, inæqualia: quorum 3 (raro 5) castrata. Fructus 5-coccus, rostratus: rostra spiralia, introrsum barbata.
Specific Character and Synonyms
PELARGONIUM tetragonum pedunculis bifloris, ramis tetragonis carnosis, corollis tetrapetalis, L'Herit. n. 72. t. 23
GERANIUM tetragonum. Linn. Suppl. p. 305.

A vein of singularity runs through the whole of this plant, its stalks are unequally and obtusely quadrangular, sometimes more evidently triangular; its leaves few, and remarkably small; its flowers, on the contrary, are uncommonly large, and what is more extraordinary have only four petals; previous to their expansion they exhibit also an appearance somewhat outrè, the body of the filaments being bent so as to form a kind of bow, in which state we have represented one of the blossoms in our figure.

When it flowers in perfection, which it is not apt to do in all places, the largeness of its blossoms renders it one of the most ornamental of the genus.

There is a variety of it with beautifully coloured leaves, of which we have availed ourselves in its representation.

It flowers from June, to August, and September; requires the same treatment as the more common Geraniums, and is readily propagated by cuttings.

136Pelargonium Tetragonum
Pelargonium Tetragonum
Square Stalked Geranium

Other species of the Pelargonium genus