522 WILSON EXPEDITION TO CHINA 
Rhododendron concinnum Hemsley in Jour. Linn. Soc. XXVI. 21 
(1889). 
Rhododendron coombense Hemsley in Bot. Mag. CXXXV. t. 8280 (1909).— 
Schneider, Ill. Handb. Laubholzk. II. 1044, fig. 614 f-g (1912). 
Western Szech'uan: Wa-shan, thickets, alt. 2000-2500 m., June 
1909 (No. 3446; bush 2-3 m. tall, flowers lavender-purple); same 
locality, alt. 1600-2300 m., June and October 1908 (No. 3448; bush 
2.5 m. tall, flowers purple). 
The undescribed fruit of this species is cylindrical, 1-1.5 em. long, 4-5 mm. 
wide, often curved, furrowed and lepidote. 
In the description and figure of R. coombense Hemsley no mention is made of the 
corolla being lepidote; this is the only difference we can find between the two plants. 
Rhododendron Searsiae Rehder & Wilson, n. sp. 
Frutex 2.5-5 m. altus, ramis gracilibus; ramuli hornotini initio dense 
fulvo-lepidoti, demum fusci et verruculosi, annotini cinereo-fusci, 
vetustiores flavido-cinerei v. cinerei; gemmae florales ovatae, perulis 
rotundatis mucronatis minutissime puberulis sparse lepidotis cili- 
olatis. Folia tenuiter coriacea, oblanceolata v. oblongo-lanceolata, 
rarius elliptico-oblonga, acuminata, basi attenuata, margine leviter 
revoluta, 4-8 cm. longa et 1.2-2.5 cm. lata, supra atroviridia, initio 
sparse lepidota, demum glabra, nitidula, subtus glaucescentia, squa- 
mulis brunneis conspersa, costa media supra valde impressa subtus 
elevato, nervis utrinsecus 8-10 supra leviter impressis subtus leviter 
elevatis v. utrinque obsoletis; petioli supra canalieulati, 5-8 mm. 
longi, verruculosi, pallidi v. purpurascentes. Flores 4-8, fere umbellati; 
pedicelli 10-12 mm. longi, flavescenti-lepidoti; bracteae caducae, 
oblongo-lanceolatae, lepidotae; calyx cupularis, variabilis, lepidotus, 
5-lobus, plerumque lobis 3 minutis, 2 elongatis membranaceis oblongo- 
ovatis obtusis longe setoso-ciliatis 4-5 mm. longis; corolla infundibuli- 
formi-campanulata, 2.5-3 cm. longa et 3—4 cm. diam., alba v. pallide 
purpurea, tubo glabro 10-12 mm. longo, lobis erecto-patentibus ovatis 
apice rotundatis 18-20 mm. longis; stamina 10, longiora corolla 
fere aequantia, filamentis dilatatis infra medium villosis basi glabris, 
antheris pallide brunneis; ovarium elongato-conicum, circiter 9 MM. 
longum, dense squamulis viridi-flavescentibus obtectum; stylus pur- 
pureus, stamina paullo superans, stigmate capitato atropurpureo. 
Capsula cylindrica, 10-14 mm. longa, lepidota, 5-valvata; — 
brunnea, nitida, minute striata, irregulariter oblonga, exalata, 1.5- 
mm. longa. 
