Liparis rivularis Aver. 2007 SECTION Coriifolia Rchb.f TYPE Drawing by © Leonid Averyanov and Taiwania 52: 299 2007

Part Shade cool cold LATE Spring EARLY Summer

Common Name or Meaning The River Loving Liparis

Flower Size .24 to .28" [6 to 7 mm]

Found in northern Vietnam in broad-leaved evergreen montane forests on shale, sandstone and granite at elevations around 1600 to 2700 meters on shady wet mossy cliffs of small mountain rivers and streams, often along waterfalls as a mini-miniature sized, cool to cold growing lithophyte with densely clustered, oblique ovoid to sub-globose, at the base with fibrous remnants of early decaying papyraceous bracts pseudobulbs carrying a single, apical, rigid, conduplicate, keeled, arising from the apex of pseudobulb, broadly-lanceolate to narrowly-ovate, acute, sessile or narrowing below into a short petiole-like base leaf that blooms in the late spring and early summer on an erect, usually with , 4-6 cm tall. square in section, peduncle commonly 1.2 to 2" [3 to 5 cm] long, ebracteate, rachis .4 to 1.12" [1 to 2.8 cm] long, zigzag, curved, square in section, laxly 1 to 3 flowered inflorescence with narrowly-triangular to cuneate, acuminate, hyaline or light green, with one indistinct median vein, shorter that ovary floral bracts and carryying light olive, yellowish-brown to light dull orange flowers.

"Morphologically our plant is close to L. luteola Lindl., from which it distinctly differs in the single leaved pseudobulbs, smaller and broader leaves and regularly lithophytic habit. This dwarf unattractive small flowering plant is a typical element of highland Vietnamese flora. Liparis rivularis regularly inhabits shady wet rocks and cliffs along small mountain rivers and streams, where it often forms large dense colonies immersed into thick moss cover. Sometimes plants are shortly flooded with high water during summer torrential rains." Averyanov 2007

Synonyms

References W3 Tropicos, Kew Monocot list , IPNI ; * Taiwania 52: 299 Averyanov 2007 photo/drawing fide;

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