172 REPORT OF THE CONFERENCE ON GENETICS. 
Epilobium parvifloruam x roseum (KH. persicinum) 
rosmarinifolium x spicatum 
* adnatum x palustre (EH. semiadnatum) 
anagallidifolium x origanifolium 
Gremli, “ Swiss Flora.” 
alsinifolium x palustre (HK. scaturiginium) ; 
Riesengebirge, Bihar Gebirge, Hochkamm. 
Kerner, vol. 11. p. 591. 
x montanum (E. salicifolium) 
Kerner, vol. il. p. 586. 
Adenostyles leucophylla x albifrons (A. hybrida) 
x alpina (A. eginensis) 
Erigeron acris x Villarsii (HE. Favrati) 
alpinus x glabratus 
x uniflorus 
Gremli, “ Swiss Flora.”’ 
canadensis x acris (KH. Huelsenii) 
Kerner, vol. ii. p. 585. 
Inula hirta x salicina (I. spuria) 
salicina x Vaillantii (I. semiamplexicaulis) 
Achillea atrata x macrophylla (A. Thomasiana) 
x moschata (A. impunctata) 
x nana (A. Laggeri) 
macrophylla x moschata (A. Lereschei) 
x nana (A. valesiaca) 
moschata x nana (A. intermedia) 
Millefolium x tomentosum 
Valley of Saas according to Schneider. 
nobilis x setacea 
Petasites albus x niveus 
niveus x officinalis 
Senecio incanus x uniflorus (S. oligocephalus) 
abrotanifolins x incanus 
Centaurea Jacea x nervosa 
x rhetica 
Cirsium (Cnicus) 
1. Leaves with small spines on upper surface. 
acaule x lanceolatum (C. sabaudum) 
2. Leaves without spines on upper surface. 
a. Leaves more or less decurrent. 
bulbosum x palustre (C. semidecurrens) 
oleraceum x palustre (C. hybridum) 
b. Leaves not decurrent. 
acaule x heterophyllum (C. alpestre) 
x bulbosum (C. medium) 
x oleraceum (C. rigens) 
And others, the above being only a selection. 
Gremli, “‘ Swiss Flora.’’ 
canum x oleraceum (C. tataricum) 
Kerner, list, vol. ii. p. 586. 
