522 WILSON EXPEDITION TO CHINA 



Rhododendron concinnum Hemsley in Jour. Linn. Soc. XXVI. 21 



(1889). 



Rhododendron coomhmse Hemsley in Bot. Mag. CXXXV. t. 8280 (1909).— 

 Schneider, III. 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 cm. 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 canaliculati, 5-8 mm. 

 longi, verruculosi, pallidi v. purpurascentes. Flores 4-8, fere umbellati; 

 pediceUi 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 corollam 

 fere aequantia, filamentis dilatatis infra medium villosis basi glabris, 

 antheris pallide brunneis; ovarium elongato-conicum, circiter 5 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; semina 

 brunnea, nitida, minute striata, irregulariter oblonga, exalata, 1.5-2 

 mm. longa. 



