Page:Manual of the New Zealand Flora.djvu/722

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682
ORCHIDEÆ.
[Pterostylis.

oblong to oblong-ovate or elliptic-oblong, obtuse or subacute, thin and membranous, veins conspicuously reticulated; cauline leaves wanting. Scape short; flower solitary, ½–¾ in. long. Galea erect at the base, sharply curved forwards towards the tip; upper sepal acute or acuminate; petals broadly falcate, acute. Lower lip broadly cuneate, the free lobes narrowed into filiform points exceeding the galea, sometimes recurved at the tips. Lip lauceolate,^ narrowed to a blunt point, rather thick, grooved, purplish; basal appendage penicillate at the tip. Column barely half as long as the galea, upper lobe of wing with an erect subulate point; lower lobe oblong, obtuse.— (?) P. trifolia, Col. l.c. xxxi. (1899) 281.

North Island: Ruahine Mountains, Olsen! South Island: Nelson—Mount Frederic, near Westport, Townson! 2000–3500 ft.

So far as can be ascertained from the limited amount of material available, this is separated from P. foliata by the smaller size and proportionately larger leaves, the short scape, which wants the large sheathing bracts of P. foliata, the more sharply curved and more acute galea, and differently shaped lip.


8. P. trullifolia, Hook. f. Fl. Nov. Zel. i. 249.—Stem slender, glabrous, 2–6 in. high, seldom more. Radical leaves often wanting in flowering specimens or 1–4, in flowerless ones more numerous and subrosulate, petiolate; blade ¼–⅓ in. long, broadly ovate or orbicular-cordate or trowel-shaped, acute or obtuse; petiole as long or longer than the blade. Cauline leaves or bracts 3–5, flat, spreading, ⅓–1 in. long, lanceolate or linear-lanceolate, acute or acuminate, the lower sometimes broader and petiolate. Flower solitary, ½–1 in. long. Galea erect at the base and then gradually curved forwards; upper sepal lanceolate, acuminate; petals as broad, falcate, acuminate. Lower lip broadly cuneate, the lobes long and filiform, embracing the upper sepal and exceeding it. Lip linear, glabrous, obtuse, its tip exserted; basal appendage linear, much curved, penicillate at the tip. Column less than half the length of the galea; wings with a small triangular upper lobe or tooth; lower lobe oblong, obtuse.—Handb. N.Z. Fl. 269. P. rubella, Col. in. Trans. N.Z. Inst. xviii. (1886) 271.

North Island: Lowland districts from the North Cape to Wellington, apparently rare and local to the south of the East Cape. South Island: Marlborough—Mount Peter, J. Macmahon!


9. P. puberula, Hook. f. Fl. Nov. Zel. i. 249.—Stem slender,, puberulous, especially below, 2–4 in. high. Leaves all radical, crowded in a rosette at the base of the stem, small, shortly petiolate, ⅕–½ in. including the petiole, ovate or ovate-cordate, acute; bracts on the stem above the leaves 2–4, sheathing, erect, lanceolate, acuminate. Flower solitary, erect, ½ in. long. Galea erect, shortly and abruptly incurved towards the tip, the upper sepal acute, the petals as long or rather longer, obtuse. Lateral sepals united for nearly half their length into a narrow almost quadrangular lamina,