討論:森氏杜鵑
山羊百科，林文智老師的植物、山岳、攝影紀錄
6. Leaves about 10 cm long; petioles 1.2-2.5 cm long.......10. R. morii
6. Leaves 5-7 cm long; petioles 0.5-1.5 cm long.......15. R. pseudochrysanthemum
10. Rhododendron morii Hayata 森氏杜鵑
A small tree to 10 m, wide-spreading; branchlets stout, floccose-tomentose, soon glabrous. Leaves thickly coriaceous, crowded at top of the branchlets, oblong-lanceolate, 6-12 cm long, 2.5-3.0 cm broad, the apex acute or shortly acuminate, often apiculate, the base obtuse to subrounded, the margins entire, recurved, the upper surface dark green, glabrous, the lower surface glabrous, floccose-tomentose along the costa, the costa strongly raised beneath, the secondary veins indistinct; petioles 1.5-2.5 cm long, floccose-tomentose. Flowers umbellate-racemose; pedicels about 1 cm long, glandular-hairy; calyx 5-dentate, glabrous; corolla white, purplish dotted, campanulate, 3-4 cm long, 5-lobed, the lobes spreading, rounded; stamens 10, unequal, the filament glandular below; ovary and base of style hispid-pubescent. Capsules cylindric, about 2 cm long, 5-6 mm across, slightly pubescent to glabrescent.
Endemic. In forests of the central mountain range between 1,650-3,500 m.
NANTOU: Luantashan, Mori s. n. in 1906 (Syntype of R. morii Hayata), Hayata & Mon s. n. in 1908. CENTRAL RANGES: Mori s. n. in 1911 (Type of R. pachysanthum Hayata), s. n. in 1910. CHIAYI: Mt. Alishan, Wilson 9739; Mt. Yushan, Nakahara s. n. in 1906 (Syntype of R. morii Hayata).
麻花杜鹃亚组 Subsect Maculifera Sleumer
玉山杜鹃 Rhododendron morii Hayata
常绿灌木或小乔木，高4.5-7.6米；树皮褐色，光滑；幼枝淡绿色，疏生白色微柔毛，在花序下的小枝直径3-4毫米，老枝灰褐色，无毛。顶生冬芽长尖卵形，长1.5厘米，直径6毫米，近于无毛。叶革质，长圆状披针形或长圆形，长6.5-12厘米，宽1.8-3.3厘米，先端短渐尖，长6.5-12厘米，宽1.8-3.3厘米，先端短尖，有时渐尖，具突尖头，基部圆形至楔形，边缘反卷，上面深绿色，无毛，下面淡白绿色，成长后除中脉有绒毛外，其余无毛，中脉在上面凹入较深，下面隆起，密被黄褐色绒毛（易脱落），侧脉14-16对，在上面稍凹下，下面不显明；叶柄长2-3厘米，多少被有丛卷毛及有柄腺体。顶生总状伞形花序，有花10-15朵；总轴长2厘米，具腺体；花梗细长，长2.5-4厘米，淡绿色，多少具有柄腺体；花萼小，长1.5-3毫米，裂齿5，三角形或近于圆形，先端尖或钝，边缘多少有流苏状腺体；花冠漏斗状钟形，长5厘米，直径3.7厘米，白色或带蔷薇色，内有深红色斑点，基部有明显的斑块，裂片5，圆形，长2厘米，宽2.3厘米，顶端有浅缺刻；雄蕊10-14，不等长，长3.7-4.8厘米，花丝自色，基部密被微柔毛，花药椭圆形，黄色，长2-2.5毫米；子房柱状圆锥形，长7毫米。直径2.3毫米，略有肋纹，被短柄腺体及少数细毛，花柱长3.8厘米，白色，基部有短柄腺体，柱头裂片状，宽约3毫米。蒴果圆柱形，微弯曲，长1.3-1.6厘米，直径5-5.7毫米，深褐色，略有平坦的肋纹及毛被残迹，花柱宿存。花期4月，果期10-11月。
产我国台湾中部。生于海拔1 830-3 040米的森林中。模式标本采自台湾阿里山。
