43 
BALFouR—NEW SPECIES OF RHODODENDRON. 103 
Rh. niveum—should be a valuable garden plant. It is now in 
cultivation from seeds collected by Mr. Forrest. 
The species is apparently one of the Irroratum series. The 
material for examination is not abundant and I had not 
appreciated the true affinity of the plant when I dealt with the 
Irroratum series (see Trans. Bot. Soc, Edin., vol. xxvii (1916- 
1917), 157. 
Rhododendron euanthum, Balf. f. et W. W. Sm. 
Frutex . altus. Ramuli hornotini glauco-purpurei 
glandulis breviter stipitatis rubris conspersi, seniores albido- 
grisei glandularum vestigiis obscure notati. Alabastra ignota, 
Folia longe petiolata ad 10 cm. longa; lamina chartaceo- 
coriacea oblongo-elliptica ad 7.5 cm. longa 3.7 cm. lata apice 
obtusa tuberculo-mucronata margine cartilaginea plana basi 
glandulis vel earum vestigiis obsita basi rotundata vel late 
obtusa vel subtruncatula nec cordulata plerumque inaequilater- 
alis, supra viridis opaca costa media erubescente paullo sulcata 
venis primariis utrinsecus ad 14 haud prominulis glabra sed 
pedibus glandularum obscure notata interdum in foliis _juniori- 
bus praecipue ad basim circa costam mediam glandulis rubris 
Sparsissime conspersa, subtus pallide fulva glabra costa media 
elevata venis primariis et venularum reti conspicuis sed haud 
elevatis papillis epidermicis petasiformibus inter venulas areo- 
lata; petiolus ad 2.5 cm. longus validus erubescens supra sulcatus 
glandulis rubris plus minusve conspersus. Flores racemoso- 
umbellati; umbella terminalis ad 12-flora rhachi ad 1 cm, Jonga 
puberula et rubro-glandulosa; bracteae bracteolaeque mox 
deciduae ignotae; pedicelli circ. 3 cm. longi recti rigidi rubidi 
rubro-glandulosi et obscure puberuli apice sub calyce oblique ex- 
Planati. Calyx parvus circ. 3 mm. longus carnosulus ad medium 
7-lobatus, lobis irregularibus rotundatis vel semilunatis rubro- 
glandulosis. Corolla rosea vel roseo-layendulacea kermesino- 
maculata aperto-campanulata ad 5 cm. longa tenuis extus 
intusque glabra 7-lobata, lobis explanatis circ. 2.5 cm. longis 
3 cm. latis rotundatis emarginatis. Stamina 14 inaequalia 
longiora circ. 3 cm. longa antheris circ. 3-5 mm. longis breviora 
circ. 2.2 cm. longa antheris 2.5 mm. longis, filamentis deorsum 
latioribus glabris. Discus brevissime puberulus. Gynaeceum 
circ. 4 cm. longum corolla brevius stamina superans ; ovarium 
circ. 7 mm. ongum conoideum truncatum dense rubro-glandu- 
losum glandulis breviter albido-stipitatis ; stylus validus 
glandulis rubris capitatis breviter stipitatis ex toto obtectus sub 
stigmate discoideo-lobulato labio stylari cincto expansus. 
pecies haec R&A. Souliei, Franch. affinis foliis chartaceo- 
coriaceis haud cordulatis, calyce parvo carnosulo ubique 
