HYDRANGEA 



them sterile. — The greenhouse Hydrangea. June, July, 

 but blooming in winter under ghiss. A large number of 

 varieties have been introduced from Japan and China, 

 where this species has been extensively cultivated for 

 many centuries, and where it is native. The following 

 are some of the best known. They may be divided into 

 3 groups: 



(1) Japonica group: cymes flat, with sterile and fertile 

 flowers. 



Iray (B. acumin&ta, Sieb. & 



1. & Zucc). Lvs. ovate-lanceo- 



V appressed-pubescent: sterile 



"p.ils. usuallv blue. S.Z. 56-57. 



I ' '■ , >!' I.. 1. Lvs. elliptic- 



, '' In. \ ate sepals, long- 



iM -. S.Z. 51. Var. 



'.ucc. H. Japan 



acuminata, A. 



late, acuminate, 

 Hs. with elliptic 

 Var. Azisai, M;i 



//. 





Lvs. i.vatc to i-lliptic, aruniiiiiLir, ^h.ll^.iu^ : sepals 

 broadly ovate, t.mthed, pink. b.Z. .j:.;. L'..U. ;iO:Gl. R.H. 

 1874:!M) (as /I. tniniiinata) . Var. macros^pala, Rgl. Dif- 

 fers from tlie former only by its larger sepals. Gt. 

 15:520. Var. M^riesi, Hort., seems also not much differ- 

 ent, but has somewhat broader lvs., and the pink sterile 

 -fls. are very large, S-."!'.. in. :mio-v. Cn. 54:1196. U.C. 

 XXL 23, suppl. 5-28. V;ir. rosalba, \-,,n Houtte (H. Und- 

 leyi, Hort.). Lvs. ovaio or . Ili|.i i.Mivate, acuminate, 

 sparingly hairy: sepals <li-iitato, ovate or broadly ovate, 

 white and pink or whitechant-ui-to j.ink. S.S. 16:1649- 

 50 R H 1866 4J0 Gn 4b 9 lU \ ar serrilta Rehd 

 (fl' ^enata DC ff TJiunbergi Sieb & Zucc H cya 

 nea Hort ) Lvs elliptic or o\ ate narrowed at both 

 ends serrate sparingly appressed hairy lH-3 in long 

 cymes small 3-4 in broad tls pinkish or bluish sepals 

 rounttish obtuse oi emargmate S Z 58 G C 1870 1699 

 (2) Hoitetibia gioup ryme-: qlohnte ii itli almost all 



I! 





rk purple 



laige with purple peduncles se 

 pals I ink r I lui li obovate A F 5 360 Var HorMn 

 sia M iMiii I \ large elliptic glabrous sepals 

 broadly o\ ate iiitiie u uallj pmk This is the form 

 which first tame mt cultivation outside of Japan and 

 C hina and is aid to have been introduced from f hina to 

 England in 1790 by Joseph Banks B M 4 b < t XIX 

 24 ^^ Cn 4t p 12 50 pp 123 2 6 307 o2 2hl \ ar 

 OtAksa Maxim (R Otaksa Sieb & Zm c ) Fife 1113 

 Dwarfer but of vigorous growth Iv obovate short 



HYDRANGEA l8i> 



acuminate, rather thick, glabrous sepals obovate, en 

 tire pink or blue b Z 52 P S 17 1732-33 Gn 50 1079 

 R H 1868 450 Mn 5,p 105 A G 11 415 A F 10 1015 

 F E 9 52 and 401 Gng 5 161 Var pldna, Rgl Similar 



1113 Hydrangea hortensis 



Hogg Hort I V 111] ti r t rtth( r in dl beads 

 large pure wliii II i ii \ li t h\aifer 



than the conni II 1 i I i I ( It iksa 



the best as a j I I i 1 i iiim nded 



for outdoor cultn i i i ttli h rli t 



(3) Stillata group fls uitli many narrow sepals 

 \ ar Bteliata Maxim [ff stellAta Sieb & Zucc) 

 Lvs ovate or ovate oblong sparmglj pubescent cymes 

 with larger sterile and smaller feitile fl both with 

 many narrow elliptic sepals S Z 54 \ ir fimbriata 

 Dipp Cymes rather dense with alinrst all the fl 

 sterile sepals fimbriate white pink to\^aid the la e 

 GC III 23 suppl 5 28 \ ir prolifera Hort {H stil 

 lata var piolifeta Rgl ) The fertile fls bearing 1 or 

 few smaller ones m the center \ ar rubro plSna Dipp 

 Cvmes rather dense with almost all fls sterile chang- 

 ing from pink or pale lilac to dark red 



There are also some varieties with vai legated lvs at 

 var vanegata Regel a f rm (f var Bel o>n with the 

 lvs edged white (t S 7 601 ) var tricolor Hort with 

 the lvs variegated with whit iml edge 1 yellow var 

 rdseo marginata Hort witlith h j tttd white and 

 edged pmk 



re Ci/me en I III / i ling bi/ r S 



la) I I II 



s involucrata ^ l I \\ i i il t it 



