170 REPORT OF THE CONFERENCE ON GENETICS. 
Cistus monspeliensis x salvifolius (C. florentinus) 
Southern France, Corsica, Portugal, Algeria. 
x populifolius (C. nigricans) 
Southern France, neighbourhood of Narbonne. 
albidus x salvifolius (C. albereensis) 
Southern France, Portugal. 
crispus x salvifolius (C. novus) 
Southern France. 
x laurifolius (C. Pourretii) 
Southern Spain, Gibraltar. 
albidus x hirsutus 
Portugal. 
ladaniferus x salvifolius 
Portugal. 
Engler’s “ Pflanzenreich,”’ Cistacee, by W. Grosser, iv. 198. 
Leipzig: Engelmann. 
Viola alba x hirta (V. badensis) 
arenaria » Riviniana (VY. Burnati) 
Beraudii x hirta 
calcarata ~ tricolor (V. Christii) 
hirta x odorata (V. permixta) 
mirabilis x sylvatica (V. spuria) 
x Riviniana 
odorata x scotophylla 
Gremli, “ Swiss Flora,” translated from fifth edition. 
*Dianthus barbatus x superbus (D. Courtoisii) 
Mem.—Species of this genus usually hybridise freely, and are easy to 
manipulate. 
Gremli, “ Swiss Flora,’ translated by Paitson. 
Lychnis diurna x vespertina (L. dubia) 
Gremli, “Swiss Flora,” translated by Paitson from fifth edition. 
Hypericum quadrangulum x tetrapterum 
Gremli, “Swiss Flora,” translated by Paitson. 
Medicago falcata x M. sativa (M. media, “ Pers. Syn.’ vol. ii. p. 356) 
Kerner, ii. p. 579. 
Rubus tomentosus x vestitus 
x Radula 
And a number of others. 
Fragaria collina x elatior (F’. sericea) 
Near Binningen, canton Bale. 
collina x vesca (fF. Hagenbachiana) 
Potentilla alba x Fragariastrum (P. hybrida) 
aurea X minima (P. semiternata) 
Fragariastrum x micrantha (P. spuria) 
frigida x grandiflora (P. valesiaca) 
x multifida (P. pennina) 
grandiflora x salisburgensis (P. rheetica) 
minima x salisburgensis 
multifida x salisburgensis (P. geranioides) 
Gremli, “ Swiss Flora,” translated by Paitson from fifth edition. 
