210 MISSOURI BOTANICAL GARDEN. 
21 X 23. Subsect. PaHenranrur X EUCAPRIFOLIA. 
132 x 148 -~ 152. x. sempervirens X (Caprifolium x 
Etrusca). 
L. Heckrottii, Rehder in Bailey, Cycl. Am. Hort. 23942 (1900). 
This curious honeysuckle has been offered for a num- 
ber of years by American nurseries as L. Heckrottii, but I 
was not able to learn anything about its origin. The shape 
of the corolla is almost like that of the subsection 
Eucaprifolia except that the tube is slightly ventricose 
below the middle and slightly hairy within, while the in- 
florescence is very different and resembles closely that of 
L. sempervirens or L. interrupta. In regard to the large 
bractlets, the elongated inflorescence and the foliage, it 
seems most probable that either Z. Htrusca or L. Italica 
have entered into the parentage, while the inflorescence 
shows the influence of Z. sempervirens. The hardiness of 
the hybrid and also the scarcity of L. Htrusca in cultiva- 
tion make it more probable that Z. Ialica is the other 
parent. 
22. Subsect. CypHEoLAn. 
142 X 144. L. piopca X HIRSUTA (glauca X hirsuta), 
Zabel in Beissner, Schelle & Zabel, Handb. Laub- 
holz-Ben. 450 (1903). 
L. hirsuta involucrata, Lavallé, Arb. Segrez, 139 (1877), nom. nud, 
L. involucrata, hort., ex Lavallé, 1. c. and ex Zabel, l. c. 
Zabel also refers L. glaucescens, Rydberg, with its syn- 
onym L. Douglasii, Hooker, to this hybrid, but L. glauces- 
cens is certainly no hybrid, as its geographical distribution 
and its characters clearly show. 
142 x 145. L. pioeca X SuLLIvaNTit (glauca X Sulli- 
vantit), Zabel, 7. c. 
L. glauca, hort., not Hill, ex Zabel, J. c. 
L. Epsomiensis, hort., ex K. Koch, Dendr. 21: 12 (1872) & ex Zabel J. c. 
L. fiava, hort., not Sims, ex Zabel, 0. c. 
a oo rf ; 2 
eee. he ee ee OF 
