CORRECTIONS AND ADDITIONS TO VOLUME II 453 



sparse setosis exceptis glaber, foliis pctiolatis ellipticis v. oblongis trinerviis saepe 

 inaequalibus, floribus terminalibus solitariis v. binis majusculis roseis. 



Species unica Chinae occidentalis incola. 



Genus novum Melastomacearum ad tribum Sonerileas referendum. Proximum 

 videtur generibus Fordiophyto Stapf et Sonerilae Roxburgh sed antheris sub- 

 aequalibus a priori et floribus tetrameris ab altero facile distinguitur. 



This new genus seems to be most closely related to Fordiophytum which differs, 

 chiefly in its unequal stamens, deciduous rather large sepals, in the ovary only 

 partly adnate to the calyx, in the symmetrical petals and the more herbaceous 

 habit. In its floral structure it seems nearest to Sonerila, but that genus is easily 

 distinguished by its trimerous flowers and symmetrical petals. In its habit and 

 general appearance the new genus resembles certain species of Monochaetum, Uke 

 M. alpestre Naudin and M. Pringlei Rose, but that genus is otherwise entirely dif- 

 ferent and belongs to a different tribe. In the shape of the petals Plagiopetalum 

 resembles Carionia as they are figured by Naudin (in Ann. Sci. Nat. Bot. s6t. 3, 

 XV. t. 15, fig. 6 [1851]) except that the petals are broader at the base. 



Plagiopetalum quadbangulxtm Rehder, n. sp. 



Suffrutex 30-45 cm. altus, dichotome patenti-ramosus, glaber; ramuli et rami 

 graciles, anguste quadri-alati, aUs in ramuhs vetustioribus magis prominentibus et 

 suberosis. Foha membranacea, graciliter petiolata, anguste elHptica v. elliptico- 

 oblonga, obtusiuscula v. obtuse breviter acuminata, basi angustata, adpresse 

 crenulato-serrulata dentibus seta albida 0.5-1 mm. longa terminatis, 1.8-4.5 cm. 

 longa et 0.7-1.5 cm. lata, opposita saepe valde inaequalia, supra obscure coeruleo- 

 viridia, inter nervos primarios utrinque serie setarum albidarum distantium in- 

 structa, subtus paulo pallidiora glabra, trinervia, nervis primariis supra inconspicuis 

 subtus elevatis trabecuhs 6-10 leviter elevatis conjunctis; petioU graciles, 3-8 mm. 

 longi, supra canaUculati, marginati. Flores rosei, terminales, sohtarii v. bini, 

 circiter 2 cm. diam.; pedicelh angulati, 3-5 mm. longi; calyx campanulatus, 4- 

 angulatus, 8-nervius, 5 mm. longus, lobis 4 subulatis saepe inaequalibus 0.5-2 mm. 

 longis longioribus pauci-serrulatis ; petala quadrangulo-ovaha, inaequilateralia, 

 8-10 mm. longa et circiter 6 mm. lata; stamina petala paulo superantia, antheris 

 filamentis subaequilongis paulo inaequaUa filamentis fiUformibus basin versus 

 leviter dilatatis, rectis, antheris lineari-lanceolatis leviter curvatis eis staminum 

 longiorum 5.5 mm. longis, staminum breviorum 4 mm. longis, connectivo stami- 

 num longiorum postice paulo supra basin antherarum tubercuhs 2 levibus con- 

 fluentibus notato, staminum breviorum ad basin antherarum tubercuhs 2 levibus 

 distinctis notato; stylus stamina vix superans. Capsula campanulata, circiter 

 8 mm. longa; semina (immatura tantum visa) oblonga, basin versus paulo an- 

 gustata, minute punctulata, 1-1.2 mm. longa. 



Western Szech'uan: Hungya Hsien, sandstone cliffs, alt. 60O-I000 m., 

 June 9, 1908 (No. 3261; sub-shrub, 0.3-0.45 m. tall, flowers carmine red). 



A.R. 



Carpinus cordata, var. chinensis (p. 425). Strike out " Veitch Exped. No. 420" 

 and add the following numbers: 



Western Hupeh: Changyang Hsien, woods, alt. 1300-2000 m., 1907 (No. 

 1440; plants only); Fang Hsien, woodlands, alt. 2000-2500 m., 1907 (No. 4444; 

 plants only) . 



Carpinus Henryana (p. 429). Add the following numbers: 



Western Hupeh: Changyang Hsien, woods, alt. 1300-2000 m., 1907 (No. 



1436; plants only); Fang Hsien, woodlands, alt. 2000-2500 m., 1907 (No. 4443; 



plants only). 



