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14. Cassiope D. Don, Edinburgh New Philos. J. 17: 157. 1834.
锦绦花属 jin tao hua shu
Fang Ruizheng (方瑞征 Fang Rhui-cheng); Peter F. Stevens
Shrubs evergreen, dwarf. Stems procumbent or ascending. Leaves decussate, sessile, appressed and crowded, imbricate, usually 4-ranked. Leaf blade small, entire or fimbriate-ciliate, veinless, 1-channeled on back, sometimes plane or convex. Flowers solitary, axillary, pendulous. Pedicel slender, base bracteate; bracteoles absent. Flowers usually 5-merous. Calyx lobes imbricate, subfree. Corolla white or pink, campanulate, lobed or cleft; lobes recurved. Stamens included; filaments straight, flattened; anthers ovate, with two long recurved awns. Ovary superior, glabrous, with many ovules per locule. Capsule depressed-globose, each valve 2-cleft at apex. Seeds many, minute, wingless.
About 17 species: circumboreal, extending south into China, the Himalayan region, Japan, Russia, and W North America; 11 species (six endemic) in China.
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| 1 |
Leaf blade not furrowed abaxially. |
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(2) |
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Leaf blade ± deeply furrowed abaxially. |
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(4) |
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| 2 (1) |
Leaf blade plane, margin incrassate, setulose. |
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3 Cassiope palpebrata |
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Leaf blade abaxially convex, margin hyaline membranous. |
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(3) |
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| 3 (2) |
Leaf blade elliptic, abaxially densely setulose, apex with a membranous acumen much shorter than
blade. |
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1 Cassiope myosuroides |
| + |
Leaf blade elliptic to suborbicular, abaxially subglabrous, apex with a membranous acumen ca. as
long as or longer than blade. |
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2 Cassiope membranifolia |
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| 4 (1) |
Furrow only to 1/3–1/2 blade length. |
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4 Cassiope abbreviata |
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Furrow reaching near apex of leaf blade. |
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(5) |
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| 5 (4) |
Leaf blade with membranous margin. |
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(6) |
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Leaf blade without membranous margin. |
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(8) |
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| 6 (5) |
Leaf blade abaxially sparsely silvery pubescent, margin rust-brown colored, membranous and brown flattened-setulose; pedicels 5–25 mm. |
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7 Cassiope argyrotricha |
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Leaf blade abaxially glabrous, margin silvery, membranous and ciliolate; pedicels 1–7 mm. |
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(7) |
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| 7 (6) |
Leaf blade 4–6 mm, 0.5–1 mm apiculate. |
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5 Cassiope fastigiata |
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Leaf blade 2.5–4 mm, apex obtuse, not apiculate. |
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6 Cassiope fujianensis |
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| 8 (5) |
Leaves sometimes lax; leaf blade ovate-triangular, 2–3 mm, margin fringed with wool-like hairs and glabrescent. |
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8 Cassiope selaginoides |
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Leaves densely imbricate; leaf blade oblong, (2–)4–7 mm, margin barbellate or setulose. |
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(9) |
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| 9 (8) |
Leaf blade with densely setulose margin, hairs solitary or 2 or 3 together, to 2–3 mm, each with scattered short stiff barbules, adaxially ± plane. |
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9 Cassiope wardii |
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Leaf blade with rigidly pubescent, barbellate margin, adaxially concave. |
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(10) |
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| 10 (9) |
Leaf blade oblong-elliptic, 2–4 mm, base arching, abaxially with shallow subtriangular glabrous furrow. |
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10 Cassiope nana |
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Leaf blade oblong-linear, 5–7 mm, base 2-lobed, abaxially with deep narrow densely puberulous furrow. |
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11 Cassiope pectinata |
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List of lower taxa
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Treatments in Other Floras @ www.efloras.org
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