ON A NEW SPECIES OF AMMANN1A. 375 
ix. p. 262 (1823) ; G. Don, Gen. Syst. p. 228 ; De Cand. Prod. ix. 
p. 177 ; ' Bonplandia,' x. p. 221, t. 13. — Biynonia mmiualis, Kuuth in 
Humb. et Bonpl. Nov. Gen. Amer. iii. p. 132; De Cand. Prod. ix. p. 
144. Tecoma maligna, Lindl. Herb. Noinen vernac. Mexicanum, 
" Aguejote," teste Gregg.— Geogr. Distr. On the slopes of the moun- 
tains of Western Mexico, between Mescala and Estola (Humboldt 
and Bonpland ! in Herb. Berol.) ; between Vera Cruz and Oaxaea 
(Galeotti! n. 1017), near Jalapa (Galeotti ! n. 20); at Aguacatlan, 
nearTepic (Gregg ! n. 946) ; in Guatemala (Skinner! in Herb. Lindl. 
et Hook.) ; Nicaragua (Seemann !), always growing on the banks of 
rivers, and replacing our Willows in those regions. 
In Lindley's herbarium there are specimens of Astianthus collected 
by Skinner in Guatemala, the value of which consists in their having 
both flowers and ripe fruit. The position of the genus, so long doubtful, 
is by means of these easily cleared up. Instead of belonging to the 
Eubignoniea, Astianthus must be placed near Dolichandrone, amongst 
Jacarandece. It has nothing to do with Catalpa, as was supposed, 
neither agreeing with it in fruit nor flower, and four of the stamens 
D""" ""£■> 
being fertile. The seeds are not, as D. Don had described them, 
"villis numerous papposa." Don described the seeds of another 
Bignoniacea as belonging to Astianthus. Don and De Candolle de- 
scribe the flowers of Astianthus as " rubro-purpurea ;" but all of us 
who have seen the plant wild, as yellow. 
I have identified Bigtmia viminalis of Kunth with Astianthus longi- 
folins; the authentic specimens of Humboldt and Bonpland leave no 
doubt on that point. The genus consists only of one species, and 
difiera from its allies in its spiny fruit, regular calyx, and parallel 
anthers. Its seeds are the smallest of any Bignoniacea known to me. 
ON A NEW SPECIES OF AMMANNIA GROWING WILD 
IN THE BOTANICAL GARDENS, CALCUTTA. 
By S. Kurz, Esq. 
The Botanical Gardens at Calcutta have already yielded me last year 
I new species of Lemna. This year I was so fortunate as to detect 
another new and marked species. This, however, N not the only hnd 
^ the „ ;l nkn S during 1867, for I shall soon have the pleasure of sub- 
