PLANTS FROM BATANt^S AND BABUYANES ISLANDS. 387 
A certain soutliward extension of the Fonnosan flora was to be ex- 
pected, but this is exceedingly weak in comparison with the northward 
extension of the Philippine flora. B\it two genera are represented in 
the collection^ previously unrecorded from" the Philippines, Eryfhraea, 
represented by E. spicata (L.) Pers., an introduced species in Formosa, 
and Phoenix, represented by a new variety of Phoenix hanccana Xaud., 
previously known from Formosa and southern China. Eight additional 
species only, not previously reported from the Philippines, Isdiaenntm 
ciliare Eetz., Lilium longiflorum Thunb., Elatostema platyphyUam Forst., 
Chenopodiuni acuminatum Willd., Pueraria thunhergiana (S. & Z.) 
Benth.j Lysimachia mauritiana Lam., Clerodendron tricliotoinum Thunb.,. 
and Gynura elliptica Yabe & Ilayata, can be considered as having 
reached the two groups through Formosa. Of the above list but a single 
nown 
Formosa, while Ischaemum ciliare, Chenopodiuni acuminatum^ Elatos- 
tema platyphyUum, and Lysimachia mauritiana are species of wide 
distribution, and Lilium longiflorum, Pueraria thunhergiana, and Clero- 
dendron trichotomum are Japanese types extending to southern China, 
Formosa, and the two last to Taizoh. 
My knowledge of the Fonnosan flora is based on the published works 
of Matsumura and ITayata,^ and Hayata/ and on various supplementary 
papers published by the latter in the Tokyo Botanical Magazine; on a 
considerable number of Fonnosan plants in the Herbarium of this 
Bureau, received from Tokyo, and on the material in the Herbarium of 
the College of Science at Tokyo, which I had an opportunity of examining 
in Juno, 1907, in company with Dr. Hayata. The paucity of Philip- 
pine types in the Fonnosan collections at Tokyo is very striking, in 
comparison with the abundance of northern and continental t}*pes, and 
this .character of the Formosan flora has been emphasized by Dr. Hayata 
in his latest publication. It seems evident, from information at present 
at hand, that the Formosan flora is not closely related to that of the 
Philippines, although due to the proximity of Luzon and Formosa, a 
certain number of species common and confined to Formosa and the 
Philippines are found. A list of these species is given below: Brrgia 
glandulosa Blanco, lUigera hizoncnsis (Presl) Merr,, Ehajunm formo- 
sana Matsum., Uncaria forida Vid., Morinda parvifolia Bartl., Gynura 
elliptica Yabe & Hayata, Tahernaemontana cumingiana A. DC, Gaul- 
thena cumingiana Vidal, Isanthera discolor Maxim., CaUicarpa formosana 
Polfe, Scutellaria luzonica Kolfe, Croton cumingii Muell. Arg., Yille- 
hrunea trincrvis Wedd., Bul^i^^ rolfei Vidal (var. hirsuim Hayata, in 
Formosa), Ainsliaea reflexa Merr., Geodorum nutans (Presl) Ames, 
»Enuni, PI. Formosa, Journ. Coll. 8ci. Tokyo 22 (1006) 1-702. 
* Flora Montana Formosae, 1. c. 25^* (1908) 1-200. 
776-JO 
