129 
TROPHOLUM HEYNEANUM, Bernh., A LYTTLE-KNOWN 
SPECIES FROM SOUTHERN PERU. 
By Bertuotp Seemann, Pu.D., F.L.S. 
: (Plate V.) 
Mr. Clements R. Markham, when on his way to the Chinchona- 
forests of Caravaya, met with a pretty Tropeolum with orange-coloured 
blossoms, amongst fields of Indian-corn about Arequipa, and speaks of 
it, in his ‘Travels in Peru and India, p. 78, as Tropeolum Canariense. 
It is indeed the nearest ally of the species that goes in our gardens 
under that name, and is properly called T. peregrinum, Lim., but 
its flowers are not of that clear canary-bird-like colour, and the 
shape of the leaves and petals, and, above all, the spur of the calyx, are 
different. It is also easily distinguished from 7. bicolor, R. et Pav. 
(which I cannot agree with Don in regarding as identical with 7. pere- 
grinum, Linn.), by not having stipules. The plant Mr. Markham brought 
home does not exist in any London herbarium, nor is it figured in any 
Woik consulted, and none of the descriptions given in systematic books 
quite agree with it. My conclusions that it might possibly be Tropeo- 
lim Heyneanum, of Bernhardi, were shared by my excellent friend Mr. 
Miers, who thought he remembered seeing the plant in the gardens of 
ima. The part of Bernhardi’s description not agreeing with Mark- 
ham’s plant (* pedunculis solitariis sub-2-floris ") was explained away 
by Mr. Miers as a. mistake possibly arising from confounding a young 
axillary branch with two buds for a peduncle. There being only one 
Tropeoluin (T. umbellatum, Hook.) where the peduncle has more than 
one flower, such a character was of importance, and I had my doubts 
as to the correctness of the determination ; they were finally overcome 
by my friend Mr. Otto, Curator of the Botanic Gardens, Hamburg, who 
- informed me that he has seen the plant in cultivation, but that it has en- 
"rely disappeared from German gardens, rendering the supply of seeds 
for which Mr. Markham some months ago has written to Peru highly 
acceptable. 7, Heyneanum is described, besides in the * Thüringer 
Gartenzeitung,’ in the ‘Hamburger Gartenzeitung.’ Baron Bieden- 
feld found it about Huanuco on irrigated fields (Allg. Gartenz. xiii. 
P. 108), and says that it requires more warmth than other species 
of the genus, and, as it is an annual, the seeds should be raised in our 
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