DIAGNOSES SPECIERUM NOVARUM. 257 
1.8 cm. lata apice late obtusa mucrone apiculato conspicuo ter- 
minata, margine cartilaginea dura compactim recurva, basi at- 
tenuata cuneata ; supra atro-viridis laevis glabra, costa media sul- 
cata glabra sed glandulis sparsis minute notata, venis primariis 
occultis ; subtus cinerea plus minusve mycophylloidea et fuligin- 
osa, costa media straminea prominula, venis primariis utrin- 
secus ad 8 sub indumento elevatis, ubique indumento persistente 
crassa bistrato tomentoso vestita, strati superi superficie laxe 
alveolata ; petiolus ad 5 mm. longus purpureus pilis vestigialibus 
et glandularum pedibus obtectus nunc glandulis perfectis obsitus. 
Racemo-umbella circ. 4-flora, rhachi brevi circ. 1 cm. longa 
setuloso-glandulosa; bracteae fertiles cucullatae ad 1.5 cm. 
longae 8 mm. latae obovatae apiculatae sericeae et sebaceo- 
glutinosae; bracteolae ligulatae superne latiores ex toto pilosae 
pilo-cristatae ; pedicelli virides ad 3 cm. longi dense setuloso- 
glandulosi ad apicem oblique expansi. Calyx obliquus zygomor- 
phus ubique extus setuloso-glandulosus ; cupula parva vix 1 mm. 
longa margine postice lobis 3 roseis rotundatis ornata antice vix 
lobata. Corolla atro-kermesina tubuloso-campanulata vix 2.5 
cm. longa paullo gibbosa intus sparsim puberula; lobi 5 vix 
emarginati vix I cm. longi 1.5 cm. lati. Stamina 10 inaequalia, 
longiora circ. 2 cm. longa, breviora 1.2 cm. longa; filamenta 
glabra. Discus sparsim puberulus. Gynaeceum circ. 2.5 cm. 
longum corollam aequans; ovarium petasiforme circ. 2.5 mm. 
longum sulcatum truncatum ad juga glandulis setulosis dense 
obtectum in sulcis pilis variis vestitum; stylus glaber; stigma 
lobulatum stylo paullo latius. 
Tibet. Tsarong. Salween-Kiu-chiang divide. Forrest 
No. 20,220. 
A remarkable discovery. In Rh. haemaleum we have a 
Rhododendron of the Sanguineum Series showing a black-crim- 
son. flower. Here is another. Evidently a plant smaller in all 
its parts than Rh. haemaleum but presenting us with a flower of 
all the intensity of colour met with in that species. The 
characters by which it may be separated from Rh. haemaleum are 
such as preclude any suggestion of conspecificity. Rh. didymum 
is essentially a glandular plant which Rh.haemaleum is not. 
Young stems and leaves, pedicels, ovary are all setulose-glandular 
and then the filaments of the stamens are quite glabrous. 
Rhododendron epapillatum, Balf. f. et Cooper. 
Arbor 5 m. alta. Rami annotini crassi 3.5 cm. diam. sparsis- 
sime glandulosi. Folia petiolata 15 cm. longa; lamina coriacea 
rigida oblongo-obovalis 13 cm. longa 4 cm. lata, apice obtusa sed 
subrostratim mucronata mucrone parvo, margine cartilaginea 
subrecurva obscure asperata, basi obtusa vel subcuneata; supra 
