This species of Pultenæa was introduced, from New Holland, about the year 1792, by Messrs. Lee and Kennedy, Hammersmith, and is undoubtedly one of the handsomest of the genus. It is difficult to increase as the seeds do not mature, and it is very rarely propagated by cuttings. It grows to the height of three or four feet; and, when in flower, makes a very brilliant appearance. It is not a long-liv’d plant; is very impatient of wet, and is easily hurt by the cold, so should be kept in a dry and warm part of the green-house, or even on a shelf in the hot-house, during the winter months. It thrives in very sandy peat earth without any mixture. Our drawing was made from a plant in the Hibbertian Collection, in the month of June, 1801. [Illustration] PLATE CCCXXI. ARETHUSA PLICATA. _Plaited-leaved Arethusa._ CLASS XX. ORDER I. _GYNANDRIA DIANDRIA._ Chives on the Pointal. Two Chives. GENERIC CHARACTER. CALYX. Spatha foliacea. Perianthium nullum. COROLLA, ringens; petala quinque, oblonga, subæqualia, duo exteriora, omnia conniventia in galeam. _Nectarium_ monophyllum, basi tubulosum, intra corollæ fundum, bipartitum; labio inferiore reflexo, lato, rugoso, longitudine petalorum, propendente; labio superiore lineari, tenerrimo, stylo adnato, apice lobato. STAMINA. Filamenta duo, brevissima, pistilli apici insidentia. Antheræ ovatæ, compressæ, tectæ duplicatura labii interioris nectarii. PISTILLUM. Germen oblongum, inferum. Stylus oblongus, incurvus, labio interiore nectarii vestitus. Stigma infundibuliforme. PERICARPIUM. Capsula oblongo-ovata, unilocularis, tri-valvis, angulis dehiscens. SEMINA numerosa, acerosa. EMPALEMENT. Sheath leafy. Cup none. BLOSSOM gaping. Five petals, oblong, nearly equal, two outer, all converging into a helmet. _Honey-cup_ one-leafed, tubular at the base, within the bottom of the blossom, two-parted; lower lip reflexed, broad, wrinkled, the length of the petals, hanging down forwards; upper lip linear, very delicate, fixed to the shaft, lobed at top. CHIVES. Two threads, very short, sitting on the top of the pointal. Tips egg-shaped, flattened, covered by the folding of the inner lip of the honey-cup. POINTAL. Seed-bud oblong, beneath. Shaft oblong, incurved, cloathed by the inner lip of the honey-cup. Summit funnel-shaped. SEED-VESSEL. Capsule oblong egg-shaped, one-celled, three-valved, splitting at the angles. SEEDS numerous, chaffy. SPECIFIC CHARACTER. Arethusa radice globosa; folio cordato, plicato, hirsuto. Arethusa with a globular root; leaf heart-shaped, plaited and hairy. REFERENCE TO THE PLATE. 1. The Plant, after the Flower has disappeared. 2. The Petals of the Flower, spread open. 3. The Honey-cup, spread open. 4. The Chives and Pointal. 5. The same, magnified; the hood, to which the chives are attached, lifted up.