Herbarium catalogue

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AMS Ee é - "eer ! 1 BE, cty}-€ ie og - Ctme b e nth (LCA) Leetee Cas : f 4 & CAHZ pave bs ™ ’ . A ai . ~ fi, ee f i A P f A VAS 1 SF c aA tix —~ ie - , yi etrt Bills CAAt OVI , , Zepeda Pf / & ‘ a « § ( 7 ,§ fle ttHALG f 4 _— Z 2 p71 70,4 * fy Lt ~ A a ‘ € f a é — 2 Ps "A (46 é - re ' : c S : j gor > fo te 5 Ca bina § 420 “ f # gt ey oV CW Fw o, ¢ “- 2 (* 4 | Oe gee PE, f 4 ’ y ‘* n.et-Grri-t eC ~ 3 ec ’ « a j J y 7 [ vd ¥ LY-jh wt é r d a4 Od tee Geet Nae, 4 / ¥ f ff é 5S Kh A t 4 / si ; fy 4. A a oe LPC « é ‘ het O CS , ; ig 4 ¢ tit ‘ LA S- } ¥ j ii » a iy, . a SF net Ze Sard a3 CD —«& Z - . tf copyright reservedvy Habit. A shrub of about 10 ft. Shoots straggling, those below inflorescences about 3 mm. diameter; densely lepidote, bark quickley peéling, exposing on older shoots a bare, smooth, coppery red stem. Leaves. Lamina elliptic, ee ite to Suber asewo lanceolate,/2.5-5 cm. long, 1-2 cm. broad; apex obtuse with a Aunlrcinteol tame Kremelhiy nrtoth ov conspicuous mucro;{memgineentine; upper surface bright green, minutely rugulose, lepidotes; under surface densely lepidote with golden to rusty=brown scales which vary much in size, some much tanner and darker than the majority, about their own diameter apart but sometimes tOuching, epidermis papfillate (with white ry, waxy papillae); midrib prominent, lateral veins obscure. Petiole 5-8 mm. long, grooved above and densely lepidote. Inflorescence.A terminal umbel of 4-7 flowers; rhachis very short sparsely lepidote. Pedicels about 1.3 cm. long, green or sometimes tinged purple, densely lepidote, epilose. Calyx pale green, about 5 mm. long, with a thickened basal cup which is densely lepidote; lobes 5, ovate, each about 4 mm. long, distinctly reflexed, sparsely scaly on the back, margins eciliate but more or less lepidote. Corolla tubular campanulate, about 2.5 cm. long, creamy white with a slight tinge of pink on the lobes,the tube relatively long, tube 1,3-1.5 cm.“long, outside sparsely lepidote, within glabrous; lobes 5, about 8 mm. long, and 7 mm. broad. I-K Om, OP Stamens 10, unequal, S@—dGemwa, long; filaments white, * hairy at the base; anthers smadl, aout or less than 1 mm. long, 2s, Pistil saeoet, ajom. long, (shember~bren—eerebte); ovary G] \ pale yellow. Soe a> -2.5 ee dome-shaped, rounded to the base of the style, slightly grooved, greenish/ 8 9 10 copyright reservedSeries Boothii. ' Rho, auritum, Tagg Habit. A shrub of about 10 ft. Shoots straggling, those below inflorescences about 3 ma, diameter; densly lepidote, bark quickly peeling exposing on older shoots a bare, smooth, coppery stem. Leaves. Lamina elliptic to elongate-elliptic or lanceolate} 7 subcoriaceous, 2.5-5 om. long, 1-2 em. broads; apex obtuse with a conspicuous mucro; base broadly cuneate or subrounded; upper surface bright green, lepidote; under surface densely lepidote with golden to rusty-brown scales which vary much in size, some larger and darker than the majority, all about their own diameter apart or sometimes touching, epidermis papillate} midrib prominent, lateral ? veins ohscure. Petiole §-s mm. long, densely lepidote, 5] inflorescence a terminal umbel of 4-7 flowers; rhachis ee ee short, sparsely lepvidote. Pedicels about 1.3 em. long, densely lepidote, epilose, Calyx pale green, about 5 ma, long, basal cup densely lepidote; lobes 5, ovate/ each about 4 mm. long, distinctly reflexed, 2k sparsely scaly on the back, narginfeciliate but more or less % lepidote. Corolla tubular—campanulate, about 2.5 em. long, creamy white with a slight tinge of pink on the lobes; tube 1.3-1.5 om, long, outside sparsely lepidote, witnin glabrous; lobes 5, about 8 mm. long, 7 mm. broad. Stamens 10, unequal, 1-2 cm. long; filaments white, hairy ae em at the bases; anthers about or less than 1 mm. long, pale yellow, Pistil 2-2,.5 om. long; ovary 4 mm. long, dome~shaped, greenish but with a dense covering of whitish glistening scales; style white or tinged purple, thin, straight or slightly curved, lepidote for about one third to one half of its length; stigma pink. , Gapsule ovoid, 8-10 mm. long, about 5 mn. broad, dehiscing from the apex by 5 valves, supported below by the persistent reflexed lobes of the calyx, rusty-brown with a thick incrustation of withered scales, : Habitat. South-eastern Tibet, Tsangpo Gorge near Pemak-chung. X , (Worn 278) Ward's original gatherings| of this species are in fruit Only. Jhe description of the truss and flower are based gpon : cultivated specimens received/ from Sir John Ramsden, ®ulstrode te 19 30h Gardens, Gerrard's Cross, Bucks, under Ward number 6278, and also upon s ecimens which flowered in/t#3® at the Royal Botanic Garden, ~~" ¥~ Edinburgh, under the same number. These in leaf shape and type of scale of the leaf underside agree with Ward's fruiting specimens and there is no doubt that these flowering plants in cultivation under the Ward number 6278 are the came as the plant gathered in the wild in fruit. All the characters suggest affinity with Rh. aureum but Rh. auritum differs in its smaller flower, in its flower colour and in the much smaller calyx with smaller reflexed lobes. ‘The style and stamens are short compared with those of Rh. aureum and the filaments are less hairy. In its peeling bark referred to by Captain Ward in his field note, Rh. auritum agrees/ Pout ee eee ee 223 2A See 7 SG copyright reservedagrees with Rh. aureum. If differs Slightly in the scales of the leaf undersurface. In Rh. aureum the scales are smaller and more deeply pitted in the papillate epidermis. The fruit also in Rh. auritum is broader for its length than the fruit of Rh. aureun., There is a link also with Rh. virgatum but the inflorescences of Rh. auritum are terminal. None of Ward's gatherings have la'eral inflorescences and the corolla in the cultivated specimens is not hairy outside as in Rh. virgatum. Rh. aureum is a Tali plant. The present species comes from far north west of the Tali, viz. the Tsangpo Gorge, and thus is geographically remote from Rh. aureum. The species is linked also with Rh. tephrope plum but apart from the difference in the flower colour it has a smaller reflexed calyx and the indumental scales of the leaf underside are different. MN ul | | | | | | | | | ROYAL ct J vu oe oak 0 1 2 3 4 3 6 7 8 eS 8 cm copyright reservedi?) | Oo Ke] < ge 8 © = 5 | = = © | ) = < | © a. greenish but with a dense covering of whitish glistening scales (densely lepidote); style white or tinged purple, thin, straight, or slightly curved, lepidote for about one eb ioe tne half of its length; stigma lobulate, pink. Capsule ovoid, 8-10 mm. long, about 5 mm. broad, “ e dehiscing from the apex by 5 valves, supported below by th persistent reflexed lobes of the calyx,/rusty-brown with a thick) 3 (incrustation of withered scales. a if a ieee ~ Habitat.) “Fsangpo Gorge near Pemayphung. . o- Ward's original gatnerings of this species are in fruit only. The description of the truss and flower are based upon cultivated specimens received from Sir John Ramsden, Bulstrode Gardens, Gerrard's Cross, Bucks, under the Ward number 6278, and also upon specimens which flowered in 1930 at the Royal Botanic Garden, Edinburgh under the same number. These in leaf shape and type of seale of the leaf underside agree with Ward's fruiting specimens and there is no doubt that the flowering ee plants in cultivation under the Ward number are the same as the plant gathered in the wild in fruit. All the characters suggest affinity with Rh. aureum but Rh. auritum differs in its smaller flower, in its flower colour and in the much smaller calyx with smaller reflexed lobes. The style and stamens are short compared with those of Rh. aureum and the filaments are less nei be In its peeling bark referred to by Captain Ward in his field note, Rh. auritum agrees with Rh. aureum. It differs slightly in the scales of the leaf undersurface. In Rh. aureum the scales are smaller and more deeply pitted in the papillate epidermis. The fruit also in Rh. auritum is broader for its length than the fruit of Rh. aureum. There is a link also with Rh. virgatum but the infloresce of Rh. auritum are terminal. None of Ward's gatherings have lateral inflorescences and the corolla is not hairy outside wf as in Rh. virgatum. Rh. aureum is a Tali plant. The present species comes from far north west of the Tali, viz. the Tsangpo Gorge, and thus is geographically remote from Rh. aureum. The species is linked also with Rh. vephropeplum but apart from the difference in the flower colour it has a smaller reflexed calyx and the indumental scales of the leaf underside are different. Te name ‘auritum' has reference to the reflexed calyx lobes which suggest a likeness to ear-lobes.9 .E. Tuber: Yisangpo Gorge near Pemalfchung. Alt. 8000 ft. Shrub of 10 ft. ROYAL BOTANIC GARDEN EDINBURGH in sheltered clefts of the cliff above the river. 19/11/24. Truss 5-7 flowerede The bark flakes off exposing the coppery-red smooth stem. Branches flop over unless supported, 9 grows thickly forming a bush and last year bore abundant flowers. 8 22/11/24. Abundant here on big boulders in the river bed, : u ; flowered freely this year. 18/11/24. Ward 6278™ F xe) © | c | ® ~) | ® | he | a | cum ©) | gH => | ©. © ©

kudloy . Komff TEC st ROYAL BOTANIC GARDEN EDINBURGH UMA E01409956 EX HERBARIO MUSEI BRITANNICI FLORA OF SOUTH EAST TIBET e Rhododendron lum Balf.f.& Farrer Bre. F, Luptow, G. Suerrirr, & H. H. ELuior No. 12348 Locality ‘Trulung. Po-Tsangpo Valley. one, Alltitude 7,000ft. é Date 4.4.1947 12318 Shrub up to 3 Anthers yellow dull red, Lea metimes tinge J { J en, Pedicels green tin upper surface shining green, lower su red, Open stony bay Filaments and style pale yellow, : 5 . CQ hace rusty. Corolla MQQ0589 copyright reserved

e bb. S.0k. 13570- Np Ve y — ' y j ? f. Qurdiom 41949 Detarminari+ EX HERBARIO MUSEI BRITANNICI FLORA OF SOUTH EAST TIBET Rhododendron tephro oot Balf.f.& Farrer utchi det. J.H nson & G.Taylor 1919-50 F, Luptow, G. Suerrirr, & H. H. ELtior No. 13570 Locality petween Nyuksang & Senge Dzong. Altitude 8,500ft. Tsangpo Gorge. Kongbo ‘ Calyx minute green; calyx cream yellow, sonetimes with a pinky tinge; filaments white, anthers Date 29,4.1947 light browm; gynoeciun greenish white, stign — light brown; pedicels green. Light brovm glands on under surf. ace of leaves. Hab. Shrub up to 4ft., growing on rock cliffs. ROYAL BOTANIC GARDEN EDINBURGH UUM E01409957 copyright reserved MQQ0589