1916-17.] BOTANICAL SOCIETY OF EDINBURGH 187 



vegetation, habit, and inflorescence the two plants are much 

 alike ; but in the Burmese plants the pedicels are shorter, 

 the corolla tubular-campanulate and larger, the staminal 

 filaments are glabrous, as is the ovary, whilst the style is 

 ever so much longer than the stamens. 



Not infrequently the leaf under-side retains its juvenile 

 indumentum on the midrib as a floccose tomentum. 



Rhododendron ceraceum, Balf. f. et W. W. Sm.^ 



Shrub with medium thick branches. Branchlets a year 

 old as much as 4 mm. in diameter pale green covered 



1 Rhododendron ceraceum^ Balf. f. et W. W. Sin. — Frutex ramis hand 

 crassis. Ramnli annotini ad 4 mm. diam. pallide virides strati super- 

 ficialis albi ceracei desquamantis vestigiis plus minusve iiotati. Ala- 

 bastra et folia juvenilia ignota. Folia peliolata ad 13 cm. longa ; lamina 

 cliartacea late lanceolata vel ovali-lanceolata vel sub-oblonga a medio 

 utrinque attenuata nunc oblanceolata ad 11 '5 cm. longa ad 4 cm. lata 

 apice abrupte acuta subrostrata corneo-tuberculata margine plana vel 

 pauUo recurvata cartilaginea obscure undulata (et pilorum juvenilium 

 pedibus minutissiuiis notata) basi obtusa supra olivacea subnitens 

 glaberrima fere epunctulata costa media erubescente sulcata venis 

 primariis utrinsecus circ. 16 vix conspiciiis caeteroquin laevis vel obscure 

 reticulata (lamina in vicinitate venarum primarum nunc erubescente) 

 subtus fnlvo-viridis glaberrima costa media veni.sque primariis erubes- 

 centibus elevatis venularum reti rubido vel fulvo nitens laevis ceri- 

 vernicosa epidermide epa})illata ; petiolus crassus corrugatus circ. 1*5 cm. 

 longus supra sulcatus cerae strato all)o desquamante notatus. Flores in- 

 tlorescentiae cuj usque circ. 10 racemoso-umbellati rliaclii circ. \'b cm. 

 longa pilis albis lloccosis adpressis dense tomentosa ; bracteae fertiles 

 oblongae vel obovato-spatliulatae ad 2'8 cm. longae ad 1 cm. latae mem- 

 branaceae flavido-bruimeae ciliatae extus dense sericeae intus prope 

 apicem centro sericeae ; bracteolae delicatissimae filiformes adpresso- 

 pilosae circ. 1 cm. longae ; pedicelli vix 1 cm. longi brunnei sparsim et 

 minute puberuli. Calyx cupularis minutus circ. 1'5 mm. longus extus 

 sparsim puberulus, lobis nunc deltoideis nunc late semi-lunatis nunc 

 rotundatis minutissime Hmbriatis. Corolla rosea(?) tubuloso-campanulata 

 circ. 3"7 cm. -longa androecium et gynaeceum superans extus intusque 

 glabra emaculata evariculata, lobis 5 subaequalibus circ. 1'5 cm. longis 

 circ. 2 cm. latis rotundatis emarginatis vel retusis plus minusve crenu- 

 latis. Stamina 10 inaequalia longiora circ. 3"3 cm. longa breviora circ. 

 2 cm. longa antlieris atro-purpureis circ. 3"25 mm. longis in staminibus 

 longioribus circ. 2 mm. in brevioribus, tilameutis complanatis basi vix 

 latioribus ibique minutissime puberulis eglandulosis. Discus pubescens. 

 Gynaeceum circ. 3;5 cm. longum stamina pauUo superans corolla brevior ; 

 ovarium atro-purpureuin leviter sulcatum angustum cylindricum circ. 6 

 mm. longum 2 mm. diam. sparsim puherulum (saejae solum infra medium) 

 rarissime hie et illic glandula singula praeditum ; stylus glaber sub stig- 

 mate lobulato pauUo clavatim expansus. 



Species RJl. anthosphaero, Diels affinis sed eglandulosa et foliis ceri- 

 vernicosis, ramulis petiolisque ceraceo-desqnamantibiis, intlorescentiae 

 rhachi dense sericeo-fioccoso-tomentosa, pedicello brevi baud 1 cm. longo 

 puberulo, calyce puberulo fimbriato, corolla minore intus glaljra, disco 



TRANS. BUT. SOC. EDIN. VOL. XXVII. 1 4 



