122. BALFOUR—NEW SPECIES OF RHODODENDRON. 
obsolete showing 5 fleshy rounded lobes hardly .5 mm. long 
glandular and gland-fringed. Corolla deep crimson about 2.6 
cm. long tubular-campanulate ; tube glabrous fleshy 5-gibbous : 
lobes rounded. Stamens subequal slightly shorter than gynae- 
ceum, longest I.9 cm. long; filaments glabrous dilated to the 
base. Disk large glabrous about 1.5 mm. long. Gynaeceum 
about 2.2 cm. long; ovary about 3.5 mm. long grooved 
cylindric -conoid densely glandular, glands ovoid stalked, 
epilose ; style glabrous; stigma lobulate. 
_S.E. Tibet. Mekong-Salween divide. On moist moss-covered 
rocks on the ascent of the Tsedjiong Pass. Alt. 10,000—11,000 ft. 
Lat. 28° 10’ N. Climber of 3-5 ft. Flowers deep crimson. 
G. Forrest. No. 699. June-July 1905. 
W.N.-W.-Yunnan. Siela_ Pass, Mekong-Salween divide. 
Lat: 28°. N. Ait. 13,000 ft. G. Forrest. No. 16,689. June 
1918. Type. Duplicate of No. 699 (1905). 
For several years we knew and only in partial degree of 
Rh. Forrestii as a lovely alpine from $.E. Tibet where it borders 
on N.W. Yunnan, a solitary species apparently unique in 
character amongst rhododendrons. Now by his , persevering 
and thorough work of exploration during 1917 and 1918 Forrest 
reveals to us that Rh. Forrestii is only one of a group of forms 
of which he sends home material that suffices to sanction our 
describing four new species of every one of which we may say 
that it has just claims to be considered a rival in beauty of the 
first-known species of the group. The immediately preceding 
pages contain my story of Rh. repens and on other pages will 
be found under the names Rh. erastum (p. 60), Rh. porphyro- 
phyllum (p. 108), and Rh. serpens, Balf. . et Forrest (p. 135); 
descriptions of other members of the group. Of Rh. por- 
phyrophyllum and Rh. serpens which have come in specimens 
by postal packet the material is not abundant but their marks. 
of distinctness are so evident that one cannot hesitate over 
describing them. Thus we have a small series of rhodo- 
dendrons centring in the old Rh. Forrestii of which the 
general characters may be briefly stated as :—Creeping under- 
shrubs of low growth Tooting freely along the branches which 
’ cites ae ne 
foliage-leaves—these more or less persistent for a year or two— 
are produced whilst rosettes of persistent scale-leaves marking 
