麻栗坡叉柱兰Cheirostylis malipoensis
麻栗坡唇瓣与云南叉柱兰唇瓣相似，不同之处在于它的根茎节间两端收狭；唇瓣后唇具纵向间隔的次生腺体和星状浅裂腺体。此外，麻栗叉柱兰与云南叉柱兰有同域性，但开花期不同。云南叉柱兰为花期3～4月，麻栗叉柱兰花期为12～1月。 |
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茎：地生或附生，植株长达10cm。根状茎匍匐，肉质，具节，长0.8—1cm，直径2—2.5毫米。根通常聚集在节间的中部。茎长0.5—1cm。 |
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叶：叶1—4，心形，先端锐尖，长1.2cm，宽0.9cm；叶柄管状，长0.8cm。 |
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花：总状花序具2—4朵花；圆柱状花序梗，短柔毛，具鞘，长7—9cm；鞘2—3枚，披针形，短柔毛，长1.2—1.5厘米；花苞片披针形，先端渐尖，长0.7—0.9cm,长于子房和花梗。花白色，长1cm；子房和花梗短柔毛，长0.5—0.6厘米；萼片近相似，被微柔毛（乳突），萼片椭圆形，长5mm，宽2.5mm，中部合生成筒状；侧萼片椭圆形，长5毫米，宽1.8毫米，先端锐尖。花瓣斜镰刀形，长4mm，宽1.5mm，先端锐尖。唇瓣长7mm，宽6mm；下唇囊状，长圆形，无毛，长2毫米，宽1.5毫米，被一个高的纵向隔膜分成两部分，每个部分有一个星状浅裂腺体；唇瓣的中部（爪）被短柔毛，长1毫米，宽1毫米；上唇半圆形，深2裂，基部有2个突出的绿色斑点；裂片扇形，长4毫米，宽4毫米，边缘3-5齿。蕊柱长1mm；直径长1毫米，长于喙突臂。药帽顶端钝。
花期：12～1月。 |
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Cheirostylis malipoensis X. H. Jin & S. C. Chen, Acta Phytotax. Sin. 45: 797. 2007.
麻栗坡叉柱兰 ma li po cha zhu lan
Plants 10-12 cm tall. Rhizome creeping, 8-20 × 2-2.5 mm, fleshy, nodes slightly contracted. Stem erect, 5-30 mm, 1-4-leaved. Leaves green, often reticulated with dark green, ovate-cordate, 1.2-2 × 0.9-1.2 cm, apex acute to subacuminate; petiole-like base and sheath 0.6-0.8 cm. Inflorescence 6-9 cm, pubescent, with 2 or 3 sterile bracts; rachis short, usually less than 1 cm, 2-4-flowered; floral bracts ovate-lanceolate, 7-9 mm, apex acuminate. Flowers white; pedicel and ovary 4-6 mm, sparsely villous. Sepals 4-5 mm, basal 1/2 connate and forming a tube, sparsely villous on outer surface toward base; free apical lobes triangular-ovate, 2-2.5 mm, subobtuse. Petals appressed to dorsal sepal, narrowly lanceolate-oblong, 3.5-4 × ca. 1.5 mm; lip 6-9 mm, 3-partite; hypochile saccate, ca. 2 × 1.5 mm, divided by a longitudinal septum into 2 parts, each part with 2 horn-shaped calli (rarely with just 1 callus on each side); mesochile ca. 1 mm; epichile with 2 green or beige spots at base, deeply bilobed; lobes flabellate, ca. 4 × 4 mm, apical margin 3-5-toothed. Column 1-2 mm; stelidia ca. 1 mm, slightly longer than rostellum arms. Fl. Dec-Feb.
● Forests on limestone mountains, thickets; ca. 1100 m. SE Yunnan.