目前为止，中国西南野生生物种质资源库共保藏该物种: 种子2份; DNA材料4份;

• 科:木兰科    Magnoliaceae
• 属:拟单性木兰属   Parakmeria
• 种:云南拟单性木兰   Parakmeria yunnanensis

3. Parakmeria yunnanensis Hu, Acta Phytotax. Sin. 1: 2. 1951. 云南拟单性木兰 yun nan ni dan xing mu lan Magnolia yunnanensis (Hu) Nooteboom.Trees, to 30 m tall, to 50 cm d.b.h., andro-dioecious. Bark grayish white, smooth and not fissured. Petiole 1-2.5 cm; leaf blade ovate-oblong to ovate-elliptic, 6.5-15(-20) × 2-5 cm, thinly leathery, abaxially pale green and adaxially green but both surfaces purplish red when young, secondary veins 7-15 on each side of midvein, reticulate veins conspicuous on both surfaces, base broadly cuneate to nearly rounded, apex shortly acuminate to acuminate. Flowers fragrant. Male flower: tepals 12, in 4 whorls; outer tepals red, obovate, ca. 4 × 2 cm; tepals of inner 3 whorls white, narrowly obovate-spoon-shaped, 3-3.5 cm, fleshy, base tapering into claw; stamens ca. 30, ca. 2.5 cm; filaments ca. 1 cm, red; connective exserted and forming a ca. 1 mm mucro; anthers ca. 1.5 cm; torus rounded at apex. Bisexual flower: tepals as those of male flowers; stamens fewer than those of male; gynoecium green, ovoid. Fruit long ovoid, ca. 6 cm; mature carpels rhombic, dehiscing along dorsal sutures when matured. Seeds compressed, 6-7 × ca. 10 cm; testa red. Fl. May, fr. Sep-Oct. 2n = 114.Evergreen broad-leaved forests; 1200-1500 m. SE Xizang, Yunnan [N Myanmar].【引自：Flora of China】

常绿乔木，高达30米，胸径50厘米，树皮灰白色，光滑不裂。叶薄革质，卵状长圆形或卵状椭圆形、长6.5-15 (20)厘米，宽2-5厘米，先端短渐尖或渐尖，基部阔楔形或近圆形，上面绿色，下面浅绿色，嫩叶紫红色，侧脉每边?-15条，两面网脉明显，叶柄长1-2.5厘米。花雄花两性花异株，芳香；雄花：花被片12，4轮，外轮红色，倒卵形，长约4厘米，宽约2厘米，内3轮白色，肉质，狭倒卵状匙形，长3-3.5厘米，基部渐狭成爪状；雄蕊约30枚，长约2.5厘米，花药长约1.5厘米，药隔伸出1毫米的短尖。花丝长约10毫米，红色，花托顶端圆；两性花：花被片与雄花同而雄蕊极少，雌蕊群卵圆形，绿色，聚合果长圆状卵圆形，长约6厘米，蓇葖菱形，熟时背缝开裂；种子扁，长6-7毫米，宽约1厘米，外种皮红色。花期5月，果期9-10月。【引自：中国植物志】