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Manual of the New Zealand Flora.
1. Pilularia, Linn
1. Pilularia, Linn.
Bhizome long, filiform, creeping and rooting. Leaves solitary at the nodes of the rhizome, circinate in vernation, filiform, erect. Sporocarps on short peduncles, globose, 2–4-celled, splitting at the top into as many valves as cells; each cell with a longitudinal parietal placenta bearing in the upper portion microsporangia containing numerous microspores, and below these few or many macrosporangia containing a solitary macrospore.
A small genus of 6 species, found in the temperate or subtropical regions of both hemispheres. The New Zealand species is endemic.
| 1. | P. novæ-zealandiæ, T. Kirk in Trans. N.Z. Inst. ix. (1877) 547, t. 29.—Very slender. Leaves distant, ¾–2 in. long. Peduncle about ¼ in. long, erect. Sporocarp ⅙ in. diam., globose, densely hairy, 2-celled and 2-valved. Macrosporangia 10–12 to each cell, subglobose, not constricted at the middle.—Thoms. N.Z. Ferns, 100; Bak. Fern Allies, 148.
North Island: Auckland—Lake Whangape, Kirk. South Island: Canterbury— Lake Lyndon, Lake Pearson, and other lakes in the Waimakariri district, Kirk! Enys! Berggren, T. F. C. Probably not an uncommon plant, but very easily overlooked. |