ENUMERATION OF THE SPECIES 67 



XXVI. 28 (1889). — Henry in Trans. Asiat. Soc. Jap. XXIV. suppl. 

 57 (1896). — J. H. Veitch, Hortus Veitchii, 286 (1906). — Matsumura 

 & Hayata in Jour. Coll. Sci. Tokyo, XXII. 218 (Enum. PI. Formos.) 

 (1906). — Hayata in Jour. Coll. Sci. Tokyo, XXV. art. 19, 153 (Fl. 

 Mont. Formos.) (1908). — Matsumura, Ind. PI. Jap. II. pt. 2, 463 

 (1912). — Komatsu in Icon. PI. Koisikav. II. 69, t. 119 (1914); in 

 Tokyo Bot. Mag. XXXII. [11] (1918). — Kanehira, Formos. Trees, 

 325, fig. 10 (1917). — Millais, Rhodod. 220 (1917). 



Azalea Oldhamii Hort. Veitch. apud Masters in Gard. Chron. n. ser. XVII. 524 



(1882). 

 Rhododendron Oldhamii var. glandulosum Hayata in Jour. Coll. Sci. Tokyo 



XXV. art. 19, 153 {Fl. Mont. Formos.) (1908). 

 Rhododendron longiperulatum Hayata, Icon. PI. Formos. III. 138 (1913). — 



Kanehira, Formos. Trees, 323, fig. 13 (1917). — Komatsu in Tokyo Bot. Mag. 



XXXII. [14] (1918). 



Formosa: prov. Taihoku, Jyukirin, sea-level to 1000m., April 8, 

 1918, E. H. Wilson (No. 10,316); Tamsui, 1864, R. Oldham (No. 212, 

 Herb. Kew, Herb. Gray); Sekitei, alt. 100-500 m. March 17, 1918, 

 E. H. Wilson (No. 10,165); prov. Nanto, round Lake Candidius, 

 March 11, December 7, 1918, E. H. Wilson (Nos. 9980, 11,175); be- 

 yond Musha up to 2900 m. March 3, 1918, E. H. Wilson (No. 10,029); 

 prov. Kagi, beyond Ari-san, alt. 2800-2900 m. February 4, 1918, 

 E. H. Wilson (No. 9778); prov. Koshun, South Cape, Schmuser ex 

 A. Henry (Nos. 588, in part, 588A. Herb. Kew); prov. unknown, 

 " Okasaki," March, 1914, U. Faurie (No. 164, Herb. Bur. Sci. Ma- 

 nila); without locality ex Herb. Imp. Bot. Gard. Tokyo (Herb. Bur. 

 Sci. Manila). 



This is the common red-flowered Azalea of Formosa, where it is endemic and 

 widely spread from sea-level up to 2800 m. altitude but is more abundant in the 

 north than elsewhere. On volcanic Mt. Daiton, not far from the capital city of 

 Taihoku, it is a feature on the wind-swept upper slopes. On sandstone cliffs east 

 of Taihoku it is common, and in thickets round Lake Candidius in central Formosa 

 it is a conspicuous shrub. On the grass-clad highlands beyond Musha and beyond 

 Ari-san it is plentiful. I did not see it in the extreme south, which is of coral forma- 

 tion, and suspect that Schmuser's specimen cited really came from the savage 

 territory more to the north. The species is very glandular and very hairy, the 

 leaves shoots, pedicels and calyx being covered with a soft pubescence much of 

 which is long, villose and ferrugineous in color but on wind-swept mountains in 

 winter the pubescence may be bleached pale gray and the plant shaggy in appear- 

 ance. It is a much-branched shrub from 1 to 3 m. tall, bushy in habit with twiggy 

 branchlets densely clothed with glandular, spreading, red-brown hairs among 

 which are scattered flattened, paleaceous hairs spreading and less appressed 

 than is the rule in other red-flowered Azaleas. The leaves are persistent, and vary 

 in shape from elliptic or elliptic-oblong to elliptic-ovate or very rarely to lanceolate; 

 they are from 2 to 8 cm. long and from 1 to 4 cm. wide, rounded or subacute at the 



