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RUBIACEAE. — LEPTODERMIS 405 
divisae, basi latae et submembranaceae, parce pubescentes. Flores 
ad apicem ramulorum glomerati, sessiles; bracteae rhomboideo-ellip- 
ticae, sensim longe acuminatae, membranaceae, 6 mm. longae, parce 
ciliolatae; receptaculum glabrum; calycis segmenta 5, rigida, elongato- 
lanceolato-subulata, acutissima, 4 mm. longa, ciliata; corollae tubus 
4.5 mm. longus, extra glaber, fauce pilosus; lobi 5, oblongo-lanceolati, 
subacuti, 2.5 mm. longi; antherae inclusae, 1.25 mm. longae; stylus 
gracilis, 7 mm. longus, bilobus, lobis 1.5 mm. longis. Fructus non 
visus. 
Western Hupeh: Changlo Hsien, roadsides and dry places, 
alt. 330-1000 m., June 1907 (No. 3513, type; bush 0.35-1 m. tall). 
Kiangsi: Kiukiang, abundant on the plain, alt. 100 m., July 27, 1907 
(No. 1622; shrub 1 m. tall; flowers white). 
À very distinet species with tripartite stipules, leaves strongly nerved on the 
upper surface, very long bracts and calyx segments and a bifid style. 
Leptodermis Wilsonii Hort. Kew. apud Diels in Not. Bot. Gard. 
Edinburgh, V. 275 (1912). 
Western Hupeh: Hsing-shan Hsien, roadsides, alt. 330-920, 
June 1907 (No. 3510; bush 0.3-1 m. tall; flowers pink); Changlo Hsien, 
roadsides and dry places, alt. 330-920, June 1907 (No. 3512; flowers 
white). Western Szech'uan: dry places near Monkong Ting, alt. 
2600 m., July 4, 1908 (No. 3514; bush 0.7-1.3 m. tall; flowers white); 
west and near Wen-ch'uan Hsien, alt. 1640-2000 m., July 1908 (No. 
3515; flowers white); cliffs, Niu-tou-shan, west of Kuan Hsien, alt. 
2300-2620 m., June 21, 1908 (No. 3516; flowers white). 
Here may be added notes on three species not collected during the Arnold 
Arboretum Expeditions. 
Leptodermis pilosa Diels in Not. Bot. Gard. Edinburgh, V. 275 (1912). 
Hamiltonia pilosa Franchet in sched. 
Yunnan: Mengtsze, grass mountains, alt. 1640 m., A. Henry (No. 10974; 
biy plant 0.35 m. tall; flowers pink). North-central China: “Miowan- 
san,” August 1897, Hugh Scallan (Nos. 2, 49, 50). 
Leptodermis Purdomii Hutchinson, n. sp. ; 
Frutex 1.5 m. altus; ramuli gracillimi, elongati, juniores minute puberuli, mox 
glabri. Folia plerumque fasciculata, lineari-oblanceolata, obtusa, basi angustata, 
0.5-1 cm. longa, 1.5-3.5 mm. lata, chartacea, glabra, enervosa, marginibus con- 
Spicue recurvata; stipulae ovatae, cartilagineo-carinatae, circiter 1.25 mm. longae. 
ores ramulorum apices versus aggregati, sessiles v. subsessiles; bracteae oppo- 
sitae, basi connatae, ovatae, abrupte acutae, 1.5 mm. longae, leviter carinatae, 
membranaceae, fere glabrae; receptaculum glabrum; calycis segmenta 5, oblongo- 
ovata, apice triangulari-acuta, 1.5 mm. longa, 0.75 mm. lata, coriacea, ciliolata; 
corollae tubus superne leviter expansus, 1 em. longus, fauce 2 mm. diametro, extra 
