Herbarium catalogue

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ROYAL BOTANIC GARDEN DINBUR: MINI 269923 Cultivated Plants Royal Botanic Garden Edinburgh Ericaceae Rhododendron purdomii Rehder & E.H.Wilson Determined by: David F. Chamberlain 31 MAY 2002 Living collection info.: MacMillan, Libby J No. 198 FEB 2005 Accession number & Qualifier:19750712*A Associated material: DNA sample (STA); RBGE Desiderata No. 739*1 Grown on from original wild collection: CHINA: Shaanxi: Tai-pei-shan. Type locality. Type locality copyright reserved N N om 2 o g ee

Tr clr ROYAL BOTANIC GARDEN EDINBURGH RHODODENDRON PURDOMII Rehder & Wilson, Q. Wl cans r(1qi3) 933 Frutex robustus ramulis crassis junioribus puberulis; cemmae perulis ovalibus v. oblongis puberulis per plures annos persistentibus. Folia coriacea, oblongo-ianceolata v. cblonga, acuta, basi Cuneata, Marginue revoluta, 6-9 cn. longa et 2.5-3.5 cm. data, utrinque glabra, Supra laeta viridia, nitida, leviter rugulosa, subtus paliidiora, leviter elevato-reticulata, costa media supra impressa subtus elevata, uervis utrinsecus i0-i2 supra leviter impressis y. Tere obsoletis subtus iteviter elevatis; petioli crassi, 1-1.2 ecm. longi, juniores puberuli. Flores 10-12 vy. plures, PacemosSo-umbellati; rhachis circiter 1 em. longa, rufo-tomei.tosa; pedicelli &raciles, isl.6 cm. longi, tomerito vilioso cinereo-albido dense veptiti; bracteae Oblougo-obovatae vy. oblanceolatae, utringue villosae; Calyx minutus, Cupularis, lobis 5, late triangularibus acutis 1le1.5 mi. longis Sparse pubesceutibus; corolla Campanulata, 2.53 co. longa ac lata, 5-loba, lobis rotundatis Circiter 1 cm. longis; stamina circiter 10, corollam Subaequantia, fila- mentis 2-2.5 cm. longis dilatatis Supra medium villosis, antheris pallide roseis; ovarium Conicum, 4<5 mm. longum, sparse alibico-villosum; stylus Curvatus, glaber, Stigmate capitato.. Capsula desideratur. Shensi: Tai-pei-shan, 1910, W. Purdom (no. # ); This species is Closely related to R. brachycarpunm G. Don, a Japanese Species, which has rather aifferrsatly shaped leaves white or Gun-coloured on the under side, a more elongated iiflorescence, Longer pediceis aud larger flowers. It is aiso related to k. Przewalskii eats Kili Maximowiez which has broader ieaves, usually subcordate at the base and covered with rufous or pale tomentum beneath, glabrous pedicels and an umbellate inflorescence, This species is named for William Purdom, in charge of the Arnold Arboretum explorations In nort 1931. hern China during the years 4909, 1910 and rrr Re. Tehrmie, LAS a- We Colt. Hin, Parbarm Ia cp linmell futrvilaim Fupebilie Mine’ Bo Ian por’. ahan -_ | | E00327420

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