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Family Orchidaceae.
Earina mucronata Lindl. [J. F. A.; J. B. A.; L. C.]
I am not certain that I have seen this species. It is certainly less common than the following.
Earina suaveolens Lindl. [J. B. A.]
Not uncommon in rocky clefts.
J. B. A records also (1)Dendrobium Cunninghamii, but I have not seen it.
*Spiranthes australis Lindl.
Banks Peninsula: J. B. A.!
Several specimens labelled as from Banks Peninsula are in the Canterbury Museum. In the Lyttelton Times of the 6th April, 1918, in the column “From Nature's Book”† appears the following: “Mr. J. B. Armstrong … reports that Spiranthes australis was very common on the Lake Ellesmere flats before they were drained. Both the red and white variety may be found there still”
Thelymitra longifolia Forst. [J. F. A.; L. C.]
Castle Rock; Sugarloaf, &c.; but becoming less common.
J. B. A. includes (2)T. uniflora, which I have not seen.
[Footnote] † Edited by J. Drummond.
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Microtis unifolia Reichenb. [J. B. A.; L. C.]
Not uncommon.
Prasophyllum Colensoi Hook. f. [J. F. A.]
Castle Rock, above 2,500 ft.; Lyttelton(?): R. M. L.
Pterostylis Banksii R. Br.
Not uncommon in the forest and heath.
*Pterostylis australis Hook. f.
Waikerikikeri; Checkley's Bush, Akaroa; and probably elsewhere.
Pterostylis graminea Hook. f.
Waikerikikeri; Castle Rock; Lyttelton.
(1)Pterostylis foliata Hook. f.(?).
Heathcote Valley. One specimen only seen, collected by Miss E. Holdsworth, and thus identified by Cheeseman: “I believe, however, that it is P. foliata, of which it has the sheathing bracts and short lateral sepals.”
(2)Cyrtostylis oblonga is recorded by J. B. A.
*Caladenia minor Hook. f. [J. B. A.]
Akaroa: Miss M. Fyfe!
Corysanthes triloba Hook. f. [J. F. A.; J. B. A.; L. C.]
Not uncommon in damp shady spots.
*Corysanthes macrantha Hook. f. [J. F. A.; J. B. A.]
Castle Rock.
Gastrodia Cunninghamii Hook. f. [J. B. A.]
Okute Valley, and probably elsewhere. It has been reported to me from Akaroa, and near Tai Tapu, but I have not seen specimens.
Other orchids reported by J. B. A. are (2)Dendrbium pygmaeum, (1)Corysanthes rotundifolia, (2)C. rivularis, (2)Lyperanthus antarcticus, (2)Caladenia Lyallii; and by J. F. A., (2)Corysanthes oblonga.