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). 



A very distinct 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). 



Wesffern 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; 

 shrubby plant 0.35 m. tall; flowers pink). North-central China : "Miowan- 

 san," August 1897, Hugh Scallan (Nos. 2, 49, 50). 



Leptodemiis Purdomii Hutchinson, n. sp. 



Frutex 1.5 m. altus; ramuli gracillimi, elongati, juniores minute puberuli, mox 

 glabri. Foha 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, cartilaginco-carinatae, circiter 1.25 mm. longae. 

 Flores 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 cm. longus, fauce 2 mm. diametro, extra 



