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Logania armstrongii, Buch., n.s.
A small rigid, close-branched prostrate plant, branches ascending, ½–1½ inches long, 1/7–⅙ inch diameter. Leaves densely 4-fariously imbricate, ovate, obtuse, entire, concave, ciliate on the margins of the lower half, connate in pairs at the base. Flowers solitary, terminal. Sepals 5, ciliate over the whole margins and back. Corolla 5-lobed, ⅙ inch diameter, tube short. Stamens 2, anthers 2-cleft half-way up, inserted within the mouth of the corolla. Capsule ovate, ciliate on the top, 2-valved.
Hab.—South Island: Hector's Col, Mount Aspiring, 5,000 feet alt,—Buchanan and McKay, 1881,
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Plate XXVIII., fig. 3, plant nat. size; 3 a, leaf; 3 b, corolla; 3 c, diagram of corolla; 3 d, sepal; 3 e, ciliate capsule, etc.
A small inconspicuous alpine plant, closely related to Logania tetragona, Hook, fil., but differing much from that plant in the small closely-arranged rigid branches and leaves, the sepals being hispid over the back and margins, and in the ciliated capsule.
Named in compliment to J. B. Armstrong, who has added much to our knowledge of the Alpine Flora of New Zealand.