DIAGNOSES SPECIERUM NOVARUM. 257 
diam. indumento griseo vel fulvo tenui pilis paucis intertextis 
induti, seniores plus minusve fungis nigris infesti. Alabastra 
elongata sursum attenuata ; perulae extimae caudatae indumento 
griseo, intermediae oblongo-ovales dorso pilis albidis et rufes- 
centibus puberulae margine rufo-ciliatae. Folia petiolata ad 
10.5 cm. longa; lamina coriacea lanceolata vel oblongo-lanceolata 
circ. 9 cm. longa 2.5 cm. lata sursum attenuata, apice rostrato- 
apiculata mucrone tuberculato terminata, margine plana, basi ob- 
tusa; supra laete viridis nunc purpureo-tincta nitens sublaevis 
vestigiis indumenti pilosi griseis obscure notata, costa media sul- 
cata pilis vestigialibus plus minusve impleta, venis primariis 
utrinsecus ad 12 obscuris ; subtus helvola variolata primo pallidior 
indumento completo laevi coactili persistente bistrato e pilis in 
strato supero longe ramosis intertextis in strato infero rosulatim 
breviter et late ramosis constructo vestita, costa media elevata ; 
petiolus ad 1.3 cm. longus ut rami vestitus. Flores in umbellas 
breviter racemosas terminales circ. 8-floras dispositi, rhachi cir-. 
8 mm. longa puberula ; bracteae et bracteolae mox deciduae ; pedi- 
celli subinaequales ad 2 cm. longi floccosi eglandulosi. Calyx 
carnosulus parvulus vix 1 mm. longus; lobi 5 rotundati glabri 
nunc minutissime ciliati. Corolla alba emaculata vix 3 cm. 
longa campanulata extus intusque glabra; lobi rotundati emar- 
ginati breves circ. 8 mm. longi 1.5 cm. lati. Stamina 10 in- 
aequalia, longiora circ. 2.5 cm. longa corolla paullo breviora an- 
theris oblongis circ. 2.25 mm. longis, breviora circ. 1.5 cm. longa 
antheris circ. 1.5 mm. longis; filamenta sparsissime puberula. 
Discus sparsim puberulus. Gynaeceum stamina longiora 
aequans corolla paullo brevius circ. 2.5 cm. longum; ovarium 
conoideum sulcatum truncatum circ. 3.5 mm. longum sparsim 
puberulum; stylus glaber sub stigmate lobulato vix expansus. 
Species ex affinitate Rh. levistrati, Balf. f. et Forrest. 
Eastern N.W. Yunnan. Mountains E. of Chungtien. Lat. 
27° ss! N. 12,000 ft. In rhododendron thickets. Shrub of 
6-8 ft. Flowers white, faintly flushed rose without markings. 
Forrest 16,467. July 1918. 
A plant very near Rh. levistratum, which is a Mekong-Salween 
plant from N. of Atuntzu, but has leaves slightly broader and 
smaller, flowers smaller white glabrous spotted, with long stamens 
and style about equal and both shorter than corolla and the ovary 
is sparingly floccose. This is one of a phylum showing several 
small variations such as we find in Rk. helvolum and running 
into Rh. dryophyllum. 
Rhododendron aiolosalpinx, Balf. f. et Farrer. 
Frutex venustus epilosus eglandulosus (ovario excepto). Rami 
annotini ad 2 mm. diam. Alabastra elongato-ovoidea; perulae ~ 
