ERICACEAE. — RHODODENDRON 523 
Western Szech'uan: Wa-shan, thickets, alt. 2300-2800 m., June 
and November 1908 (No. 1343, type); same locality, alt. 2600-3000 
m., June 1908 (No. 3449). 
This species is most closely related to R. polylepis Franchet which has leaves 
fulvous-brown below, a different calyx, anthers shortly exserted and smaller fruit. 
It is also closely related to R. concinnum Hemsley which has shorter, oblong-oval 
leaves, the corolla lepidote on the outer surface and pubescent within and slenderer 
capsules. 
To Sarah Choate Sears, artist, lover and successful cultivator of flowers, this 
Species is dedicated. 
Group c. 
Leaves hairy or glabrous with the petioles setose. 
Rhododendron Amesiae Rehder & Wilson, n. sp. 
Frutex 2-4-metralis, ramosus; ramuli hornotini et annotini dense v. 
interdum sparse verruculosi, annotini plerumque flavido-brunnei, vetus- 
tiores flavido-cinerei; gemmae oblongo-ovoideae, acutiusculae, perulis 
paucis ovatis obtusis mucronatis ciliolatis. Folia coriacea, elliptica v. 
elliptico-oblonga, acuta, calloso-mucronata, basi rotundata, 4-8 cm. 
longa et 2-3.5 cm. lata, supra obscure viridia, lepidota et ad costam 
mediam leviter elevatam v. vix impressam breviter villosa, subtus 
pallidiora dense v. densissime lepidota et ferruginea, nervis utrinsecus 
6-8 supra leviter elevatis interdum sparse villosulis subtus obsoletis; 
petioli, 5-7 mm. longi, canaliculati, lepidoti, supra setoso-pilosi. 
Flores terminales, 2-3, subumbellati; pedicelli lepidoti, 1-1.5 cm. longi; 
calyx eupularis, lepidotus, interdum sparsi villosulus, dentibus trian- 
gularibus v. rotundatis circiter 1 mm. longis longe ciliatis; corolla 
infundibuliformis, 3.5-4 cm. longa et 4.5-5 em. diam., atropupurea, 
extus sparse lepidota, tubo basi fere cylindrico intus cirea medium 
villosulo, lobis 5 ovatis obtusis 1.5-2.5 cm. longis; stamina 10, inaequa- 
lia, longiora corollam fere aequantia, filamentis compressis infra 
medium villosis basis excepta, antheris ochraceis ovoideis; ovarium 
conieum, 4-5 mm. longum, dense lepidotum, basi et apice albido- 
pilosum; stylus gracilis, curvatus, 3.5 cm. longus, apicem versus sensim 
incrassatus, stigmate vix capitato leviter lobato. Capsula conica, 
1.5-1.8 cm. longa et 6 mm. diam., sulcata, dense lepidota; semina 
ellipsoidea, utrinque acuta, circiter 2 mm. longa, exalata. 
Western Szech’uan: Mupin, woods, alt. 2300-3000 m., June 
1908 and October 1910 (Nos. 3444, type, 4233). 
. The setose petioles and the corolla glabrous on the outer surface suffice to 
distinguish this new species from its near allies R. Searsiae Rehder & Wilson and 
