Euphrasia disperma, Hook. f.
E. longiflora, Kirk, in Trans. N.Z. Inst. XI., p. 440.
E. (Anagosperma) disperma, Hook. f., Ic. Pl., t. 1283.
Stems weak, procumbent, matted, 2″–4″ long, clothed with deflexed, often glandular hairs. Leaves small, 1/6″–1/4″ long, opposite, shortly petioled or sessile, lanceolate, acuminate, 3-nerved, margins entire. Flowers solitary, axillary, on short curved pedicels, erect. Calyx deeply 4-cleft, teeth linear acute. Corolla erect, 1/2″–3/4″ long, tube narrow at base, dilated above, upper lip erect, obcordate; lower lip projecting, 3-lobed, lobes equal. Stamens 4, anthers large, exserted, acute. Stigma circinate at the apex. Ovary broadly ovoid, 2-celled, cells 1-ovuled, ovules pendulous from the top of the ovary. Capsule (immature) oblong, slightly beaked, apparently indehiscent.
Hab.—South Island: Okarito—A. Hamilton.
In Trans. N.Z. Institute, Vol. XI., I provisionally described this singular little plant under the name of Euphrasia longiflora, but before the publication of that volume it was described by Sir Joseph Hooker under the name given above. I have therefore given a fuller description, although still imperfect, as the ripe fruit is unknown.
This species is related to E. repens, Hook. f., which at present has only been found at the Bluff. E. disperma is distinguished from all its congeners by the 1-ovuled cells, while its narrow erect corolla and entire leaves are prominent characters.
Respecting E. repens and E. disperma, Sir Joseph Hooker writes in “Icones Plantarum:”—“The fruit is known in neither of these species; if indehiscent in both, they would form a genus instead of a subgenus, under which I now place them with the name Anagosperma from the reduced number of seeds.” He further states that E. disperma is distinguished from all other Scrophularineæ by its solitary ovules.