|
| 1 |
Base of leaves obviously broadest part of leaf |
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(2) |
| + |
Base of leaves narrower than broadest part of leaf or ?equal in width |
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(6) |
| |
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|
|
| 2 (1) |
Branches together with leaves 1.7-2 cm wide; leaves subulate, ca. 10 mm, falcate, reflexed at base. |
|
5 H. bucahwangensis |
| + |
Branches together with leaves 0.5-1.4 cm wide; leaves lanceolate, linear, or subulate, 4-6 mm, straight or falcate, not reflexed at base |
|
(3) |
| |
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|
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| 3 (2) |
Leaves falcate, linear, up to 6 mm, ca. 0.8 mm wide at base. |
|
4 H. nanchuanensis |
| + |
Leaves straight, lanceolate or subulate |
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(4) |
| |
|
|
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| 4 (3) |
Leaves sparse, lanceolate, ca. 1.2 mm wide at base, angled upward. |
|
1 H. chinensis |
| + |
Leaves dense, linear-subulate or linear-triangular, 0.8-1 mm wide at base, variously angled |
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(5) |
| |
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|
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| 5 (4) |
Leaves linear-subulate, ca. 0.8 mm wide at base, papery; longer and shorter leaves mixed on stem. |
|
2 H. miyoshiana |
| + |
Leaves linear-triangular, ca. 1 mm wide at base, leathery; longer and shorter leaves in zones on stem. |
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3 H. muscicola |
| |
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|
|
| 6 (1) |
Plants shorter than 10 cm, leaves shorter than 2-5(-6) mm; or plants up to 17 cm tall but leaves 1-2.2 mm |
|
(7) |
| + |
Plants 7-25 cm tall, longest leaves ca. 8 mm or longer |
|
(10) |
| |
|
|
|
| 7 (6) |
Leaves flat and straight on margin, even so abaxially, acuminate or acute toward apex |
|
(8) |
| + |
Leaves involute on margin, vaulted abaxially, acuminate toward apex |
|
(9) |
| |
|
|
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| 8 (7) |
Plants smaller than 10 cm, leaves 2-5(-6) mm, ascending, acute toward apex. |
|
6 H. tibetica |
| + |
Plants up to 17 cm tall, but leaves only 1-2.2 mm, reflexed, acuminate toward apex. |
|
7 H. rubicaulis |
| |
|
|
|
| 9 (7) |
Leaves ascending and amplexicaul, ca. 1 mm wide. |
|
8 H. appressa |
| + |
Leaves slightly reflexed, 0.5-0.7 mm wide. |
|
9 H. somae |
| |
|
|
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| 10 (6) |
Plants up to 25 cm tall; leaves narrowly elliptic-lanceolate, 1.5-1.8 mm wide, acute toward apex, papery. |
|
14 H. selago |
| + |
Plants relatively small; leaves lanceolate or linear, narrower than 1.2(-1.4) mm, acuminate toward apex, thinly leathery or papery |
|
(11) |
| |
|
|
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| 11 (10) |
Leaves papery, variously angled |
|
(12) |
| + |
Leaves thinly leathery or papery, reflexed, descending, or ascending |
|
(13) |
| |
|
|
|
| 12 (11) |
Leaves lanceolate, ca. 1 mm wide. |
|
10 H. laipoensis |
| + |
Leaves linear to subulate, obviously narrower than 1 mm. |
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11 H. emeiensis |
| |
|
|
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| 13 (11) |
Leaves subleathery, reflexed or slightly descending. |
|
12 H. quasipolytrichoides |
| + |
Leaves papery, ascending. |
|
13 H. medogensis |
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