388 WILSON EXPEDITION TO CHINA 



apice ramulorum aggregatis graciliter pedunculatis pedunculo 2-3.5 cm. 

 longo; pedicelli tenues, 3-8 mm. longi; calycis lobi lineari-lanceolati 

 V. lineares, 5-6 mm. longi, plerumque purpurascentes, glabri; corolla 

 alba, bilabiata, 3.5 mm. longa, extus infra medium villosa, ceterum 

 glabra, tube 2.5 cm. longo e basi satis lata sensim et paulo ampliato, 

 labio postico 3-4 mm. longo bilobato lobis rotundatis multo latioribus 

 quam longis, labio antico 9-10 mm. longo 3-lobato lobis rotundatis 

 margine crenulatis lateralibus quam medius brevioribus; stamina 

 trienti inferiori tubi inserta, 2 fertilia tubo paulo brevior filamentis 

 valde complanatis apice conniventibus, antheris rotundatis coherenti- 

 bus, 2 sterilia valde rudimentaria circiter 1 mm. longa apice inter- 

 dum leviter incurva antheris destitutis; discus cylindrico-cupularis, 

 obsolete sinuato-dentatus, 1.5-2 mm. longus; stylus ovario fere aequi- 

 longus. Capsula lineari-oblanceolata, compressa, 3-4 cm. longa et 

 3-4 mm. lata; semina oblonga v. fere fusiformia, vix 1 mm. longa, pal- 

 lide brunnea, funiculo et seta apicali paulo brevioribus instructa. 



Western Szech'uan: Wa-shan, on rocks and trees, alt. 1200 m., 

 July 1908 (No. 2254, type); same locality, on trees, alt. 1500-2200 m., 

 October 1908 (No. mi"); without precise locality, A. Henry (No. 

 8997). 



This species seems most closely related to L. pauciflorus Maximowicz, which is 

 easily distinguished by the narrower, coarsely dentate leaves on shorter and stouter 

 petioles, by the shorter peduncles, the shorter lanceolate calyx-teeth, the gla- 

 brous corolla with a tube more abruptly enlarged from a narrow base, by the sterile 

 filaments similar to the fertile ones, but only half as long and with rudimentary co- 

 herent anthers, by the longer disk, and by the linear capsule from 6 to 7 cm. long. 



Lysionotus Wilsonii Rehder, n. sp. 



Suffrutex sarmentosus v. repens, ramis carnosulis angulatis de- 

 bilibus, glaberrimus. Folia opposita, crasse coriacea, elliptica v. ob- 

 longa, breviter obtuse acuminata, basi cuneata saepe inaequaliter v. 

 fere rotundata, margine leviter revoluta, Integra v. minute remote 

 denticulata, denticulis saepe ad glandulam reductis, 4.5-7 longa et 

 2.3-3.7 lata v. 4-7.5 longa et 1-2.3 lata, supra laete viridia, subtus 

 palKda, utrinque nervis 5-6 angulo angusto a costa divergentibus 

 supra inconspicuis vix impressis subtus invisibilibus; petioli crassi, 

 0.5-1 cm. longi. Flores albi, plerumque bini in pedunculis axilla- 

 ribus 1.5-4 cm. longis gracilibus; pedicelli circiter 5 mm. longi; calycis 

 dentes anguste lanceolati, 5-6 mm. longi, purpurascentes; corolla 

 alba, bilabiata, 4.5 cm. longa, tubo in triente inferiore satis angusto 

 supra ampliato et leviter ventricoso; labium posticum bilobatum cir- 



