討論:楊桐屬
山羊百科，林文智老師的植物、山岳、攝影紀錄
1. Adinandra formosana Hayata in Matsum. & Hayata
1b. var. obtusissima (Hayata) Keng in Taiwania 1: 245. 1950; Li in Fl. Taiwan 2: 595. 1976. 鈍葉楊桐
Branches and branchlets grayish brown, terete. Leaves elliptic, 4-8 cm long, 2-3.5 cm wide, obtuse or shortly acute at apex, cuneate or acute at base, margins sub-entire or slightly serrate near the apex, revolute, midrib sulcate above, prominent below, veins elevated on both surfaces; petiole 5-7 mm long.Fruit axillary, solitary; globose, 10-12 mm in diameter, sericeous-pubescent, 3-celled; style persistent, densely pubescent.
Endemic, known only from the southern part.
PINGTUNG: Shouka to Chushuipo, Liu & Keng K2816; Nanjenshan, Huang 9521.
1a. var. formosana. 臺灣楊桐 Pl.317, Photo 292
Small trees, branches terete, pilose, glabrescent with age. Leaves coriaceous, ovate-oblong, 5-9 cm long, 2-3.5 cm wide, the apex acute or acuminate, cuneate at base, grayish yellow and glabrescent beneath, margins distinctly serrate in upper half; petiole 4-7 mm long. Flowers axillary, solitary, pedicels 2-3.5 cm long, slender, slightly pubescent; bracteoles 2, ovate-lanceolate; sepals 5, imbricate, subequal, ovate-deltoid, glabescent or slightly appressed-pubescent without, margins both denticulate and ciliate, 7-8 mm long, 4-6 mm wide; petals 5, imbricate, similar to the sepals in size and shape, connate at base; stamens 20-25, filament 3 mm long, glabrous, adnate to the base of the corolla, anthers 2-3 mm long, broadly linear, densely villous, apicules 1-1.5 mm long; ovary nearly globose, pilose, 3-celled, style 9 mm long, hairy or glabrescent. Fruit glabrescent, subglobose, 7-8 mm in diameter, many-seeded, seeds minute, black and shining.
Endemic. Throughout the island, at low and medium altitudes (200- 1,900 m).
TAIPEI: Chutzuhu, Iwami 522; Hsintien, Yamamoto s. n. 1929. TAOYUAN: Palin, Chiang s. n. 1990. MIAOLI: Compartment 133, Kuo & Kao 460. NANTOU: Lienhuachih, Kao 4072. PINGTUNG: Tashulinshan, Shimizu 3719; Nanjenshan, Huang 9521. TAITUNG: Chinshuiying, Shimizu 3785.
