DISTKIIJ. West Asia to Europe, and eastward to Japan; but nut yet 

 found in Central China. 



4. Ifytlrattyea LINN. 



Keif to tlie ForillOXOIl >S^*Wr.v. 



( 1 ) Leaves quite entire. (2) 



Leaves more or less serrate. (3) 

 ( 2 ) Leaves elongately oblong nearly 20 em. long //. iutcyru. 



Leaves shortely oblong, shortely cuspidate, less than G cm . . //. integrifdia. 

 ( 3 ) Leaves distinctly serrulate or serrate. (4) 



Leaves obscurely or remotely serrate, subeiitire or dentately serrate, 



quite glabrous H. cMnensis. 



( 4 ) Leaves glabrous, ovately oblong ; petaloidal sepals 4, entire, rounded, 

 emarginate H. ylalra. 



Leaves hirsute lanceolate or oblong. (5) 

 ( 5 ) Leaves elongately lanceolate. (6) 



Leaves ovate acuminate ; petaloidal sepals 4, serrate ....//. Kwwakamti. 

 ( G ) Petaloidal sepals rounded obscurely serrate H. lonfjifolio. 



Petaloidal sepals oblong quite entire H. anqiiMise.pala. 



Hydrangea angustisepala HAVATA Materials for a Flora of Formosa 

 p. 107. H. anywtifdia HAY ATA Ic. PI. Formos. Fasc. I. PL XXXII. 

 Scandent shrub? Branches subglabrous downward, fusco-rabescent 

 cinereo-tomentose upward. Leaves opposite, long oblong, or broadly 

 lanceolate, 12 cm. long, 3^ cm. broad, serrate, serra^ ascendent, hispid 

 above, villosely tomentose pallid beneath, petioles 1 cm. long. Cyme 

 terminal 7 cm. long as broad, branches slightly tomentose. Marginal flowers 

 sterile, long pedicellate, pedicels ] 4 cm. long ; sepals 4, petaloid, unequal, 

 outer ones longer, obovate, 14 mm. long G mm. broad, acute tit the base, 

 margin obscurely dentate, inner ones smaller, 5 mm. long 3 mm. broad. 

 Fertile flowers : sepals 5, lanceolate, 2 mm. long, tomentose, obtuse at the 

 apex, petals 5, longer than sepal, long obovate obtus at the apex. Stamens 

 10, nearly 3 mm. long, anthers broadly orbicular, retused at both ends. 

 Ovary nearly suj>erior or half -superior, styles 2-3, 1| mm. long. 



