OCR text
Rhododendron epipastum, Balf. f. et Forrest._ Fruticulus. Rami juveniles indumento alb?do e pilis ramosis adpressis arachnoideis constructo vestiti, annotini circ. 1.5 cm. diam. indumenti vestigiis plus minusve notati. Ferulae fugi-tivae. Folia petiolata ad 8 cm. longa; lamina subchartacea auguste oblonga vel obovalis ad 7.5 cm. longa 2.5 cm. lata nunc paullo obliqua, ?pice late obtusa nunc rotundata breviter p?r-pureo-mucronata, margine cartilag?nea subplana, basi late obtusa ; supra in juventute plus minusve floccosa maturitate laete viridis interdum purpurascens, costa media sulcata, venis primariis utrinsecus ad 12 paullo pinnatim impressis ; subtus initio alba demum cinerea vel viridi-grisea indumento unistratO' laxo tenui quasi detersili e pilis rosulatim ramosis adpressis velum apertum supra superficiem viridem aedificante vestita, costa media elevata paullo erubescente et sparsim floccosa ; peti-olus circ. 5 mm. longus ut rami vestitus. Umbella circ. 4-flora ; pedicelli circ. 1.5 cm. longi setulis paucis induti eglandulosi sparsim floccosi ?pice incrassati. Calyx parvus circ. 4 mm. longus 5-lobus ; cupula sparsim breviterque setulosa ; lobi circ. 2 mm. longi rotund ati vel ovati dorso glabri margine breviter setuloso-ciliati rubri circum basim corollae adpressi persistentes. Corolla rosea circ. ad 3 cm. longa aperte campanulata basi paullo^ gibbosa et intensius colorata; lobi parvi i cm. longi 1.5 cm. lati. Stamina 10 circum stylum aggregata ad 2.7 cm. longa ; filamenta glabra.. Discus vix puberulus. Gynaeceum corollam sub-aequ?ns; ovarium circ. 4'mm. longum pilis fasciatis et glandu-lis setulosis paucioribus vestitum ; stylus glaber ; stigma subdis-coideum. Species Seriei Sanguinei. S.E. Tibet. Tsarong. G, Forrest No. 18,645. 1917. This does not appear in dried specimens as a very attractive plant. It is one of the Sanguineum Series showing connection with several species but yet differing in its aggregation of characters from all of them. With a primitive thin white indumentum it has no glands ; the underleaf indumentum is so thin and open that the green leaf-surface may be seen between the hairs; the pedicels have only a few setulose and floccose hairs, no glands ; the calyx quite small and like that of Rh. sanguineuni itself only never reflexing and the 5 red lobes appear as lateral patches at base of developing fruit; corolla rose and small; stamens glabrous ; ovary tomentose with fasciate hairs and a few setulose glands. t S <D h- a o o E o ? 4jX. 4 (^) epipastum comb, nov, Rh. epipastum Balf. f. et Forrest in Notes K.B.G. Edin. xiii (1922), 258. Rh. eudoxutn Balf. f. et Forrest subspecics mesopoltum form epipastum in The Species of Rhododendron (1930). 549- Like mesopolium this variant of Rh. fulvastrum has typical arachnoid indumentum and rose-coloured flowers, but the ovary is glandular omentose. The form tnchomiscum might be included here, but is for the present kept separate, Forrest 18645 (type of Rh. epipastum Balf. f. et Forrest. " S.E. 1 ibet, Tsarong. Duplicate of IQ17. loio/') Rock 22060. Distribution : S.E. Tibet ; Tsarong, Salwin-Irrawaddy divide. " . ft' ROYAL BOTANIC GARDEN EDINBURGH E00001442 Cotype E00001442