|
| 1 |
Capsule without a peristome, margins of leaf in proximal 1/3 denticulate. |
|
7 Seligeria donniana |
| + |
Capsule with a peristome, margins subentire to entire |
|
(2) |
| |
|
|
|
| 2 (1) |
Spores 17-30 µm |
|
(3) |
| + |
Spores 10-16 µm |
|
(5) |
| |
|
|
|
| 3 (2) |
Spores (20-)23-30 µm; peristome of 16 reduced teeth, each of 5-8 cells. |
|
8 Seligeria oelandica |
| + |
Spores 17-25(-27) µm; peristome of 16 fully developed teeth |
|
(4) |
| |
|
|
|
| 4 (3) |
Capsule ovate, sometimes with flaring mouth when old and dry; seta 2-3 mm; columella short, not persistent, not attached to opercula; leaves spreading- recurved, evenly spaced around stem, not trifarious |
|
9 Seligeria polaris |
| + |
Capsule turbinate when old and dry; seta 1-1.5 mm; columella elongate with opercula tending to remain attached; leaves often trifarious. |
|
13 Seligeria tristichoides |
| |
|
|
|
| 5 (2) |
Costa excurrent, filling subulate apex |
|
(6) |
| + |
Costa (except in perichaetial leaves) ending just before apex, lamina present into apex |
|
(9) |
| |
|
|
|
| 6 (5) |
Seta curved 30-90° when wet. |
|
11 Seligeria recurvata |
| + |
Seta straight when wet |
|
(7) |
| |
|
|
|
| 7 (6) |
Leaves wiry, stiffly flexuose, long-subulate, light green to dull-green; cells of leaf lamina longer than broad, pellucid; seta less than 1 mm; capsule turbinate when old, emergent. |
|
5 Seligeria careyana |
| + |
Leaves recurved-twisted to stiffly erect, stoutly subulate from a wide base, dark-green to black; cells of distal leaf lamina usually as wide as long, opaque; seta greater than 1 mm; capsule ± ovate to oblong when old, emergent to exserted |
|
(8) |
| |
|
|
|
| 8 (7) |
Leaves stiffly-erect when dry; plants dark-green, gregarious; spores 14-16 µm; capsule contracted to seta through a wrinkled neck when old; eastern North America. |
|
3 Seligeria calcarea |
| + |
Leaves twisted when dry; plants blackish, forming turfs; spores 10-14 µm; capsule ± sharply contracted to seta when old; western North America. |
|
12 Seligeria subimmersa |
| |
|
|
|
| 9 (5) |
Plants olive green to dark green; cells of distal leaf lamina ± opaque, usually as broad as long; leaves oblong to lanceolate; capsule ovate to oblong, not clearly widest at mouth |
|
(10) |
| + |
Plants light green; cells of leaf lamina pellucid, tending to be longer than broad; vegetative leaves linear, sometimes ± subulate; capsule turbinate to obovate, widest at mouth |
|
(11) |
| |
|
|
|
| 10 (9) |
Leaves curved and loosely arranged when dry, narrowed to obtuse, plane, erect acumen; perichaetial leaves usually not clasping, similar to vegetative leaves; capsule wider at middle than at mouth; seta thin, curved 30-90° when wet. |
|
4 Seligeria campylopoda |
| + |
Leaves stiffly erect when dry, narrowed to an obtuse, incurved, channeled acumen; perichaetial leaves clasping and rapidly narrowed to stout subula; capsule ± as wide at middle as at mouth; seta ± thick, straight to slightly curved when wet. |
|
6 Seligeria diversifolia |
| |
|
|
|
| 11 (9) |
Perichaetial leaves subulate from an ovate, sheathing base, abruptly differentiated from vegetative leaves. |
|
1 Seligeria acutifolia |
| + |
Perichaetial and vegetative leaves similar, sometimes distal leaves larger, but always similar to proximal leaves in shape |
|
(12) |
| |
|
|
|
| 12 (11) |
Leaves short, ligulate; apex broadly acute to obtuse; capsule ± pyriform when old; peristome large. |
|
2 Seligeria brevifolia |
| + |
Leaves long, subulate; apex narrowly acute; capsule obovate to pyriform when old; peristome small. |
|
10 Seligeria pusilla |
|
