Goodyera pubescens
Goodyera repens
downy rattlesnake-plantain, goodyérie pubescente
dwarf rattlesnake orchid, dwarf rattlesnake-plantain, goodyérie rampante, lesser rattlesnake-plantain
blade distinctly lined with white or greenish white on veins throughout, broadly elliptic to broadly ovate, 2.1–6.2 × 1.3–3 cm, apex acute or obtuse.
blade uniformly green or with green lateral veins bordered by white or greenish white tissue, narrowly to broadly ovate, 1.1–3.2 × 0.5–1.8 cm, apex acute or obtuse.
10–57-flowered, cylindric (equally dense on all sides);
peduncle 11–35 cm.
secund, infrequently loosely spiraled, 7–36-flowered;
peduncle 3–18 cm.
lateral sepals 3.1–5.3 mm;
petals distinct;
hood 3.6–5.7 mm;
lip scrotiform, 2.5–4.2 × 2.2–3.5 mm, apex reflexed, outer surface slightly tuberculate, inner surface with somewhat thickened veins, without glandular processes;
anther inflexed, immersed in cup-shaped clinandrium, apex blunt;
pollinia blunt;
rostellum with marginal notch 0.1–0.4 mm deep;
viscidium orbiculate.
lateral sepals 3–5.2 mm;
petals distinct;
hood 3–5.5 mm;
lip narrowly saccate, lanceolate, 1.8–4.8 × 1.4–3.2 mm, apex acute, recurved or reflexed, inner surface with 2 or 4 glandular ridges;
anther inflexed, not immersed in shallowly concave clinandrium, apex apiculate;
pollinia blunt;
rostellar beak 2-pronged, 0.2–0.6 mm, shorter than body of stigma;
viscidium orbiculate.
= 26.
= 30.
Goodyera pubescens
Goodyera repens
Goodyera pubescens is very different in its lip and column morphology, phenolic constituents, and chromosome number (2n = 26) from other North American Goodyera species, indicating that it is not closely related to them.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Two varieties of Goodyera repens have been recognized: individuals with plain green leaves as var. repens and those with leaf veins bordered by broad white bands as var. ophioides Fernald. Many specimens from western North America are intermediate in this character: the bands bordering the veins are extremely narrow and almost indistinguishable by color from the leaf blade proper. Most specimens from eastern North America have obviously white-reticulate leaves, and most specimens from western Canada have plain green leaves (some with darker green veins). At several localities in western North America, plants with plain green leaves and plants with faintly reticulate leaves are found together (W. J. Cody 1961). Individuals with faintly reticulate leaves and those with plain green leaves are often found on the same herbarium sheet and, infrequently, both kinds of leaves occur on the same plant. Because of this variation in the degree of white reticulation, the varieties are not recognized here. Individuals with plain green leaves, obviously white-reticulate leaves, and intermediate leaves occur in Alaska.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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