討論:南湖杜鵑
山羊百科，林文智老師的植物、山岳、攝影紀錄
- ナンコビロードシャクナゲ Rhododendron pseudochrysanthum Hayata forma rufovelutinum Yamazaki
- 第一版
4.Rhododendron hyperythrum Hayata 小西氏杜鵑
A small tree or shrub; branches stout; branchlets glabrous. Leaves thickly coriaceous, oblong to lanceolate, 8-10 cm long, 2.5-3 cm broad, the apex acute, apiculate at the tip, the base rounded to obtuse, the margins entire, strongly recurved, the upper surface dark, glabrous, slightly lustrous, the lower pale, dotted with minute rufous punctate glands, the costa strongly raised beneath, the secondary veins about 8-10 per side, inconspicuous; petioles 1.5-2 cm long, stout, glabrous. Flowers 3 or more, umbelled, terminal; pedicels 4-5 cm long, glandular; calyx 5-lobed, the lobes triangular, glandular; corolla white, funnelform, about 4.5 cm across, 5-lobed, the lobes rounded; stamens 10, unequal, shorter than the corolla; ovary glandular; style exserted, glandular at base. Capsules cylindric, about 2 cm long, pubescent.
Endemic. Very local in distribution, limited to the mountains north of Taipei and around Mt. Yushan.
TAIPEI: Sasaki s. n. in 1910 (Type of R. rubropunctatum Hayata), 327. CENTRAL RANGES: Konishi s. n. (Type of R. hyperythrum Hayata). CHIAYI: Mt. Yushan, Kawakami s. n. in 1907.
This species is unique in the lepidote leaves with small punctations.
- 第二版
4. Rhododendron hyperythrum Hayata 南湖杜鵑
Small trees or shrubs; branches stout; branchlets glabrous. Leaves thick coriaceous, oblong to lanceolate, 8-10 cm long, 2.5-3 cm broad, apex acute, apiculate, base rounded to obtuse, margin entire, strongly recurved, upper surface dark, glabrous, slightly lustrous, lower surface pale, dotted with minute rufous punctate glands, midrib strongly raised on lower surface, lateral veins 8-10 pairs, inconspicuous; petiole 1.5-2 cm long, stout, glabrous. Flowers 3 or more in terminal umbels; pedicel 4-5 cm long, glandular; calyx lobes triangular, glandular; corolla white, funnelform, ca. 4.5 cm across, 5-lobed, lobes rounded; stamens 10, unequal, shorter than corolla; ovary glandular, style exserted, glandular at base. Capsules cylindric, ca. 2 cm long, pubescent. Endemic, limited to the northern mountains of the central range.
Central Range: Konishi, s.n. (Type of R. hyperythrum Hayata).
TAICHUNG: Nanhutashan, Lu 23457. HUALIEN: Chingshuishan, Lu 14509.
长序杜鹃亚组 Subsect. Pontica Sleumer
微笑杜鹃 Rhododendron hyperythrum Hayata
常綠灌木或小喬木；小枝帶紫褐色，無毛。葉革質，橢圓狀披針形或長圓狀披針形，長7-12釐米，寬2-3.5釐米，先端急尖或短漸尖，具小尖頭，基部鈍，邊緣略反卷，上面無毛，中脈凹入，側脈10-13對，微凹，下面有棕紅色細點，中脈凸起，側脈略凸；葉柄長1.5-2.5釐米，無毛。頂生總狀傘形花序，有花約10朵；總軸長1.5-2.5釐米；花梗長3-4.5釐米，疏被腺體和叢卷毛；花萼小，長約2毫米，5齒裂，裂片扁圓形，邊緣具腺頭睫毛；花冠漏斗狀鐘形，長和寬約3-5釐米，白色，具紫色斑點，裂片5，近圓形，頂端微缺；雄蕊10，不等長，長2.5-4釐米，花絲基部被白色微柔毛，花藥長圓形，深褐色，長2-3毫米；子房圓柱狀卵球形，長約6毫米，密被腺體，花柱長2.5釐米，下半部被腺體。花期4月。
特產我國臺灣中部和北部地方。模式標本采自我國臺灣玉山。
麻花杜鹃亚组 Subsect Maculifera Sleumer
台湾山地杜鹃 Rhododendron pachysanthum Hayata
灌木；幼枝被绒毛，最后变为无毛。叶长圆形，长6-9厘米，宽2.5-3.5厘米，先端急尖至具小尖头，基部圆形，上面有皱纹或平坦，无毛，下面通常被宿存淡褐色至棕色有分枝的绒毛，少有仅在中脉上有绒毛；叶柄长达1.5厘米，被绒毛。花序通常有花10-20朵；总轴长1-2厘米；花梗长达2.5厘米，被柔毛状短腺毛；花萼小，长仅1毫米，有腺体，尤以在圆形裂齿边缘为多；花冠宽钟形，长达4厘米，白色至淡红色，有或无紫色斑点；子房密被有柄腺体，花柱无毛。蒴果长达15毫米，直径5毫米。花期和果期均不明确。
特产我国台湾。模式标本采自台湾中央山脉森林中。
1913年，日本学者早田文藏(B. Hayata)认为本种的叶片上面有皱纹，下面密被绒毛，花柱无毛。至1992年，D. F. Chamberlain 根据 Patrick 引种的植物进一步认为该种的叶片上面无皱纹，但下面的毛有分枝，于是他赞成本种应独立成种，而不同意H. F. Tagg (1930)及李惠林(1978)并入玉山杜鹃 R. morii Hayata 中。我们目前尚未见到该种的标本和
原始资料，故暂作如上处理，植物描述是依据1982年D. F. Chamberlain的文章写成的，待以后见到台湾标本时再作研究补充。
本种与玉山杜鹃R. morii Hayata很相近，但叶片下面有宿存分枝的绒毛和花柱无毛，易于区别。
こにししやくなげ.
