43 



(8) Rhododendron lussoniense Ktuillc Joiini. Bot. 34:35(i. 18!)(). 



A species known only from the original collection by Whitehead, district 

 of Lepanto, Luzon, the type at the British musevini. 



(9) Rhododendron vidalii Rolfe, Joiirn. Bot. 24:348. 1880. {R. vcrti- 



ciUiiluin N'idal. Kcv. PI. Vase. Filip. 171. 1880, non Low.) 

 This species, previously known only from the district of Bontoc, Luzon, 

 is represented by the following specimens, all from Mount ^lariveles, Prov- 

 ince of Bataan, Luzon: No. 2743 (Merrill), January, 1904 (fruit); No. 

 3868 (Merrill), August, 1904 (flower); No. 452 (Whitford), July, 1904 

 (flower); No. 1591 (Forestry Bureau), collected by Borden, August, 1904 

 ( flower ) . 



(10) Rhododendron apoanum Stein, Gartenflora 34:194. lA. 11D6. 1885; 

 Vidal, Rev. PI. Vase. Filip. 172. 1886; Rhododendron sp. affine R. 

 retuso Benn., Vidal, Sinopsis, Atlas, t. 53. f. E. 1883; R. jasinini- 

 florum F.-Vill, Nov. App. 353. 1883, non Hook. 



A characteristic endemic species known only from Blount Apo, District 

 of Davao, ^Mindanao, represented by the following specimens: Nos. 293, 

 375 (DeVore and Hoover), May, 1903; No. 1045 (Copeland), April, and 

 No. 1440 (Copeland), October, 1904. A shrub extending from an altitude 

 of 2,500 m. to the summit of the mountain, 3,100 m. 



(11) Rhododendron whiteheadii Rendle, Journ. Bot. 34:350. 1890. 



A species known only from the original collection by Whitehead, district 

 of Lepanto. Luzon, tlie type al tlic British museum. 



(12) Rhododendron quadrasianum Vidal, Rev. PI. Va.sc. Filip. 170. 



1886; R. retusum F.-Vill., Nov. App. 353. 1883, non R. Br. 

 This species, previously known only fiom Mount Manahao, Tayabas 

 Province, Luzon, and Mayon Volcano, Albay Province, Luzon, is repre- 

 sented by the following specimens: Luzon, Province of Bataan, IMount Mari- 

 veles, No. 3215 (Merrill), October, 1903; No. 278 (Whitford), May, 

 1904; No. 0765 (Elmer), November, 1904; No. 2090 (Forestry Bureau), 

 collected by Borden, Nov., 1904; Province of Tayabas, Mount Banahao, No. 

 872 (Forestry Bureau), collected by Klemme, June, 1904; No. 804 (Cuming), 

 1836-40, in Herb. Govt. Laboratory; Mindanao, District of Davao, Mount 

 Apo, No. 287 (DeVore and Hoover), May, 1903; No. 1036 (Copeland), 

 April, 1904 — all specimens in flower, and some with mature fruit. 



(13) Rhododendron rosmarinlfolium \'idal, Ucv . 1*1. Vase. Filip. 172. 



1886. 

 A characteristic species represented by Nos. '5798 and 0377 (Klmer), 

 Province of Benguet, Luzon, the former from Mount Santo Tomas and the 

 latter from Baguio, both specimens in flower. A species previously known 

 only from the district of Bontoc, Luzon. Dr, O. Stapf has kindly com- 

 pared specimens of No. 5798 Elmci' with the type oi the species at Kew. 



(14) Rhododendron cuneifolium St:>])f, Trans. IJnn. Soc. Bot, IL 4:198. 



pi. 15. f. B. 3. 1894. 

 This species was described from material collected on Mount Kinabaln. 

 British North Borneo, and has been reported from the Philippines by 



