43 



(8) Rhododendron lussoniense Rendle, Journ. Bot. 34:350. 189G. 



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

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



(9) Rhododendron vidalii Rolfe, Journ. Bot. 24:348. 188G. (R. verti- 



cillatum Vidal, Rev. PL Vase. Filip. 171. 1886, non Low.) 

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

 is represented by the following specimens, all from Mount Mariveles, 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. pi 1196. 1885; 

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

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

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



A characteristic endemic species known only from Mount 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 in. to the summit of the mountain, 3,100 m. 



(11) Rhododendron whiteheadii Rendle, Journ. Bot. 34:356. 1896. 



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

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



(12) Rhododendron quadrasianum Vidal, Rev. PL Vase. Filip. 170. 



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

 This species, previously known only from Mount Manahao, Tayabas 

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

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

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

 1904; No. 6765 (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 rosmarinifolium Vidal, Rev. PL Vase. Filip. 172. 



1886. 



A characteristic species represented by Nos. 5798 and 6377 (Elmer), 

 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. 0. Stapf has kindly com- 

 pared specimens of No. 5798 Elmer with the type of the species at Kew. 



(14) Rhododendron cuneifolium Stapf, Trans. Linn. Soc. Bot. II. 4:198. 

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



This species was described from material collected on Mount Kinabalu. 

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



