108 
IX—SOME ADDITIONS TO THE KOREAN FLORA. 
S. T. Dunn. 
Our knowledge of the Korean flora has recently received an 
interesting addition from Dr. Ralph Mills, who has sent to Kew a 
collection of some 300 dried specimens of plants collected by him 
in the neighbourhood of Kangkai. Among them are represented 
two new species, a new variety, and several new records for the 
country. Kangkai, or Kangkyei as it is usually written on our 
maps, is situated near the northern boundary of the country 
in mountainous surroundings on the bank of the Tong Nai River, 
the principal affluent of the Yalu upon the Korean side. Its distance 
from both the east and west coasts is about 80 miles and from the 
Manchurian frontier 27 miles, and the fact that this part of Korea 
has scarcely been visited by botanists before adds greatly to the 
interest of the collection. . Mills deseribes the mountains among 
which he gathered his specimens as clothed with vegetation from 
base to summit, and as bearing a markedly different flora on their 
northern slopes which drain into the Yalu system from that on the 
southern. The dividing ridges form indeed at this point a natural 
line of demarcation between the Manchurian and Korean climates 
and floras, the moist warm summer season being considerably shorter 
on the north side, while snow and ice are more frequently seen there 
and are more persistent. The actual divide follows the crest of the 
Paik-yek San, which passes from east to west about 30 miles south 
of the city, and as the much loftier range of the Paik-tou San, the 
northern watershed of the Yalu basin, lies immediately to the north 
of it and between it and the greater part of Manchuria, it is a 
remarkable suggestion and one that will doubtless receive attention 
that it and not the northern divide forms the phytogeographical 
boundary between the two floras. 
The following species and varieties are new to Korea :— 
Euonymus alata, Thunb. 
Prunus Maacki, Rupr. site 
(SY Neillia Millsii, Dunn, sp. nov., N. sinensi, Oliy. affinis, calycis 
tubo breviore, ovulis duobus distincta. wire 
rutex cortice pallido scabro, ramis floriferis perulatis laxe hirsutis. 
Folia alterna, ovata, acuta, basi truncata, 4-5 em. longa, grosse 
biserrata, nonnunquam fere triloba, papyracea, glabra, nervis 4-5- 
paribus ; petioli 4-5 mm. longi, pubescentes; stipulae ovatae, 
4-6 mm. longae, foliaceae. Racemi vel, ob ramos paucos breves, . 
paniculi terminales, sessiles, 6-10 em. longi. Flores approxima 
6-8 mm. longi, 3-4 mm. lati; pedicelli 4 mm. longi, ut raches, 
bracteaeque laxe pubescentes ; bracteae lineares, pedicello paullo. 
longiores. Calyx campanulatus, extus glandulis pedicellatis vestitus, 
intus minute puberulus, dentibus 5 tubo bis brevioribus lanceolatis. 
Petala 5, ovata, alba, 3 mm. longa, fauce inserta. Stamina ibidem, 
numerosa, petalis bis breviora, filamentis basi paullo dilatatis. 
Ovarium uniloculare, liberum, globosum, in stylo aequilongo 
angustatum, stigmate disciforme faucem paullo excedente. Ovula 
2, a placenta parietali pend 
Kangkai, Oct. 6th, 1909, R. Mills, 107, 
