DIAGNOSES SPECIERUM Novarum. 301 
equally definite and easily seen difference between the species. 
Here we have a larger flower :—the larger calyx having a toothed 
and ultimately setulose margin and the flabelliform striation 
shows up conspicuously under the glaucous waxy surface; the 
corolla which is lepidote outside not glabrous has a long narrow 
funnel-tube and the lobes are oblong-oval and quite entire not 
rounded and deeply emarginate. ‘As to the stamens I am unable 
tosay much. In the few not very good flowers which I have had 
for investigation the stamens impress me as deformed structures. 
Perhaps the best alliance in which to place this as we know it 
now is (along with Rh. tephropeplum) that of Rh. aureum, 
Franch. 
3345 Rhododendron sub-erosum, Balf. f. et Forrest. 
Frutex virgatus fere 3 m. altus. Ramuli_ hornotini virides 
squamis latis albidis induti, annotini circ. 1. 5 mm. diam. cinerei 
nigro-lepidoti epilosi. Perulae extimae crustaceae rotundatae 
ciliatae dorso nudae, intermediae ovatae vel ovato-ellipticae dorso 
lepidotae, intimae membranaceae spathulatae ad 1. 5 cm. longae 
3 mm. latae dorso medio lepidotae et rugulosae margine ciliatae 
et setulosae. Folia petiolata ad 7 cm. longa; lamina coriacea 
anguste lanceolata utrinque attenuata ad 6.5 cm. longa 2 cm. lata, 
acuminata mucrone rubro prominulo terminata, margine sub-er- 
osa paullo recurva pilis et setulis deinde aculeato-asperata, basi 
cuneata; supra pallide viridis leviter in modum squali corii 
rugulosa squamis vestigialibus distantibus obscuris notata, costa 
media erubescente puberula, venis primariis occultis ; subtus 
pallidior laevis squamis parvis rufescentibus 1 mm. vel ultra int2r 
se distantibus vestita, costa media prominula sparsissime lepi- 
dota, venis primariis occultis ; petiolus circ. 5 mm. ongus rubidus 
lepidotus et setulosus. Flores in umbellas axillares 2-3- 
floras ad apicem ramorum dispositi, umbellis nunc fas- 
ciculatim aggregatis nunc plus minusve internodiis elon- 
gatis separatis; bracteae bracteolaeque mox  deciduae: 
pedicelli tenues ad I cm. longi dense lepidoti sub flore 
expansi. - Calyx cupuliformis parvus vix I mm. longus 
5-dentatus extus dense lepidotus margine grosse et dense 
setulosus. Corolla leviter roseo-suffusa intense maculata circ. 
1.8 cm. longa infundibuliformis extus lepidota intus puberula ; 
limbus concavus 5-lobatus ; lobi oblongo-ovales circ. 1 em. long; 
5 mm. lati. Stamina ro inaequalia longiora corollam aequantia 
breviora circ. 1 cm. longa; filamenta basim versus puberula. 
Discus glaber. Gynaeceum cire. 2 cm. longum corollam paullo 
Supérans ; ovarium cire. 3 mm. longum conoideum truncatum 
sulcatum dense lepidotum; stylus glaber sub stigmate discoideo 
recurvo vix ampliatus. Species Seriei Scabrifolii. 
