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Moss China | Family List | Moss China V. 2 | Calymperaceae

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1 Leaves narrowly long-linear; at least some cells of upper laminae (usually most of them) transversely elongate   (2)
+ Leaves oblong to variously lanceolate-acuminate but not long-linear; cells of upper laminae mostly isodiametric (sometimes transversely elongate in C. fasciculatum, which has subulate-acuminate leaves)   (4)
       
2 (1) Distal cells of cancellinae gradually blending with adjacent green cells of upper laminae; longest cells of axillary hairs mostly less than twice as long as wide   8 Calymperes serratum
+ Distal cells of cancellinae sharply demarcated from adjacent small green cells of upper laminae; longest cells of axillary hairs 3-4 or more times longer than wide   (3)
       
3 (2) Cells of upper laminae pluripapillose on at least some leaves   5 var. hainanense
+ Cells of upper laminae smooth   6 Calymperes lonchophyllum
       
4 (1) Leaf margins grossly tuberculate   9 Calymperes strictifolium
+ Leaf margins entire or toothed but not tuberculate   (5)
       
5 (4) Leaves bearing narrow intramarginal (sometimes marginal) files of differentiated cells (teniolae), at least at shoulder region   (6)
+ Leaves lacking teniolae   (9)
       
6 (5) Distal cells of cancellinae and adjacent green cells of upper laminae markedly mammillose adaxially; costa excurrent in gemmiferous leaves and bearing gemmae all around on its tip   2 Calymperes erosum
+ Distal cells of cancellinae plane; costa at most percurrent in gemmiferous leaves and bearing gemmae only on its adaxial surface   (7)
       
7 (6) Gemmae borne in a distinct receptacle at tips of gemmiferous leaves; cancellinae ending in very broad angles distally, often appearing truncate   7 Calymperes moluccense
+ Gemmae not borne in receptacles; cancellinae ending in acute angles distally or rounded, not truncate   (8)
       
8 (7) Plants robust, coarse; leaves often coarsely toothed distally; cancellinae somewhat rounded distally, often with files of hyaline cells interfingering among adjacent green cells of upper laminae; teniolae strong, obscure, often more or less marginal at leaf shoulders   10 Calymperes tahitense
+ Plants small to medium-sized, scarcely coarse; leaves entire or only weakly toothed; cancellinae ending in very acute angles distally, distal cells not interfingering among adjacent green cells of upper laminae; teniolae distinct, intramarginal   1 Calymperes afzelii
       
9 (5) Leaves subulate-acuminate; costa often long-excurrent from the subula; leaf margins often coarsely toothed distally with paired teeth; some or most cells of upper laminae often transversely elongate   3 Calymperes fasciculatum
+ Leaves ligulate to oblong or lanceolate, not subulate; costa percurrent or only shortly excurrent; leaf margins entire; cells of upper laminae mostly isodiametric   (10)
       
10 (9) Costa excurrent in gemmiferous leaves and bearing gemmae all around on its tip in pale spherical clusters; gemma receptacle lacking; cancellinae mostly truncate distally   11 Calymperes tenerum
+ Costa at most only percurrent, bearing gemmae only on adaxial surface; gemmae often borne in a distinct receptacle; cancellinae mostly rounded or acute distally   4 Calymperes graeffeanum

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