Herbarium catalogue

4 { ie Rhododendron epipastum, Balf. f. et Forrest. . adpressis arachnoideis constructo vestiti, annotini cire. 1.5 cm. diam, indumenti vestigiis plus minusve notati. Perulae fugi- tivae. Folia petiolata ad 8 cm. longa; lamina subchartacea an- guste oblonga vel obovalis ad 7.5 cm. longa 2.5 cm. lata nunc paullo obliqua, apice late obtusa nunc rotundata breviter pur- pureo-mucronata, margine cartilaginea 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 tenwi quasi detersili e pilis rosulatim ramosis adpressis velum apertum supra superficiem viridem aedificante vestita, costa media elevata paullo erubescente et sparsim floccosa ; peti- olus cire. 5 mm. longus ut rami vestitus. Umbella circ. 4-flora; pedicelli cire. 1.5 cm. longi setulis paucis induti eglandulosi sparsim floccosi apice incrassati. Calyx parvus circ. 4 mm. longus 5-lobus; cupula sparsim breviterque setulosa; lobi circ. 2 mm. longi rotundati 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 1 cm. longi 1.5 cm. lati. Stamina Io circum stylum aggregata ad 2.7 cm. longa; filamenta glabra.. Discus vix puberulus. Gynaeceum corollam sub- aequans ; 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. 10917. 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 indu- mentum 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. sanguineum itself only never reflexing and the 5 red lobes appear as lateral patches at base of developing fruit; corolla rose and small; sta- mens glabrous; ovary tomentose with fasciate hairs and a few setulose glands. wm We RY, Eoin, wii 192.2) 258 Fruticulus. Rami juveniles indumento albido e pilis ramosis xo) ® Ps hee ® n ® — vee <= ao?) = > 2. Oo oO MX. ofecfur bar 4 (e) epipastum comb. nov. Rh. epipastum Balf. f. et Forrest in Notes R.B.G. Edin. xiii (1922), 258. Rh. eudoxum Balf. f. mesopolium form e (1930), 549. : Like mesopolium this variant of Rh. fulvastrum has typical arachnoid indumentum and rose-coloured flowers, but the Ovary is glandular tomentose. The form trichomiscum mi i : might be included here i the present kept separate. ied a: Forrest 18645 ( Tibet, Tsarong, Rock 22060. Distribution: S.E. Tibet ; é et Forrest subspecies pipastum in The Species of Rhododendron type of Rh. epipastum Balf. f. et Forrest. “S.E Duplicate of 1917. 1g1g.”’) : Tsarong, Salwin-Irrawaddy divide. Cotype ROYAL BOTANIC GARDEN In