FLOE A MONTANA FORMOS.E 91 



supra pilis scaberrimis sparce snbtus dense tectis. Cymse corym- 

 bosse umbellato-fasciculatse terminales cire. 12 cm. longœ 14 cm. in 

 diametro sequantes, rhachibus tomentosis. Flores exteriores steriles, 

 sepalis 4 petaloideis nervosis fere orbicularibus 2 cm. longis totidem 

 latis utraqiie latere praeter basin apicemque serratis, serris acutis ; 

 interiores fertiles. Capsula hemispherica apice leviter constricta 

 10-costata, calycis lobis persistentibus acuminatis, sty lis persis- 

 tentibus valde divaricatis apice leviter recurvis. Semina fusiformia 

 utrinque producta longitud inaliter striata intra strias transversum 

 reticulata. 



Hab. in monte Morrison, ad 7500 ped. alt., leg. T. Kawakami 

 et U. MoEi, Nov. 1900, (No. 1875). 



Somewhat near H. involucrata Sieb. ; but differs from that in its 

 scandent habit, and in having serrate sepals of the radial flowers. 



Hydrangea longifolia Hayata, sp. nov. Frutices erecti ? 

 ramis tomentosis, cortice cinereo-fusco tectis. Folia breve petiolata, 

 petiohs lamina 10-plo brevioribus, laminis oblongo-lanceolatis 

 acuminatis basi obtusis circ. 20 cm. longis 4 J cm. latis margine 

 remote serrulatis, serraturis acuminatis, supra scabro -pilosis subtus 

 ad costas tomentosis. Cymse corymbossG umbellato-fasciculata? 

 terminales circ. 9 cm. longae 14 cm. latœ, rhachibus tomentulosis. 

 Flores exteriores steriles, sepalis petaloideis utraque pagine tomen- 

 tulosis late orbicularibus nervosis apice rotundatis basi brevissime 

 contractis 17 mm. longis totidem latis. Capsula hemispherica 

 tomentulosa latere leviter compressa, stylis persistentibus apice 

 recurvis. Semina fusiformia utrinque producta. 



Hab. Taitö : Torokusha, leg. T. Kawakami et Cr. Nakahaea, 

 Januar. 1906, (No. 690). 



Somewhat resembles H. Kawakamii Hayata ; but differs from it 



