412 REPORT OF THE CONFERENCE ON GENETICS. 
5. Hemanthus hybridus (2). Various fine forms, possibly of hybrid 
origin, and evidently related to H. Lindeni, have recently been sent out by 
Messrs. Linden, but without any genealogy. Some are very beautiful. 
Various Hysprips AND ATTEMPTED HyBRIDS THAT HAVE COME 
UNDER MY NOTICE. 
Tropeolum Lobbianum x T. majus produced fertile hybrids nearest 
the male, but have the winter-blooming character of the female. I think 
there is only one species including both these names. 
Tropeolum Lobbianum x T. peregrinum = T. ‘Richmond Comet.’ 
This is equipoised and carries seed freely, but none of it will germinate. 
Mr. Gumbleton sent me a similar plant of unknown parentage from 
gardens at Darmstadt, under the name of 7’. ‘ Isola Bella,’ which fails to 
seed with me. 
Raspberry x Blackberry (2. incisifolia 2) = Logan-berry. Fruit like 
a large raspberry, but foliage distinct from either. Blackberry blood 
clearly evidenced in thorns and especially in stipules. An American 
hybrid raised by Judge Logan. 
I experimented with several Gesneracee, especially with Gloxinia 
(Sinningia), Tydea, Isoloma, Negelia, and Lietzia. Notwithstanding the 
known affinities of some Gesneracee, I was unable to reconcile Gloxinia 
(as the female) with any of the others, although by pollinating Isoloma 
with Gloxinia I produced some seedlings with almost regular and round- 
spotted flowers which were absolutely sterile and pollenless. Moreover, 
these seedlings carried a great number of multi-petaled flowers having the 
same number of segments (7) as their putative male parent (the Gloxinia) 
had. Still, I never regarded these as hybrids, because these characters 
only appeared in a very small percentage of the seedlings, the great 
majority being apparently pure Isolomas. 
I made many attempts to reconcile the single-flowered Habranthi and 
Zephyranthes (between which I fail to discern any generic difference) 
with Hippeastrum (true). Hippeastrum, as female, never formed fruit 
with this pollen ; but as male, rarely failed to impregnate these Habranthi 
and Zephyranthes. Yet the seedlings were all typical Habranthus or 
Zephyranthes. I made fully thirty such crosses, and have raised as many 
as seven generations of self-fertilised plants from them, but without the 
slightest trace of Hippeastrum showing in any of them. Some would 
call these “ False Hybrids,’ but I think that, in such cases, we should be 
satisfied to call them “ Attempted Hybrids.”’ 
The two following hybrids were raised at Kew : a 
(1) Cheiranthus kewensis [C. mutabilis x C. Cheiri (hort.) = C. hty- 
bridus: C. mutabilis x C. hybridus = C. kewensis], see “ Gard. Chron.” 
20/2/04 with fig. The results of these crosses resemble the female in 
habit, in size of flowers, and continuity of blooming, rather than the 
male, but have the fragrance of the male. C. kewensis is fertile, and 
nearly, if not quite, hardy in the London climate. Out of perhaps thirty 
or forty seedlings of C. kewensis raised at Isleworth one only has pro- 
duced flowers the size of those of the original male parent [C. Cheiri 
: on 
