2 THE JOURNAL OF BOTANY 
garden at Parad, where they served as an invaluable adjunct to the 
study of m sa Papilio larve; but I was singularly unsuccessful 
in getting any of them to grow from see ee 
A. Huberiana, = oo pla and A. lanceolato-lorata, were often 
tried, but with n 
In regard to their wild growth, = first. point to notice is that 
none of the species are so abundant as to constitute a striking 
soma: at first glance, though the hae seibear sca: geek appear 
be widespre eae in distribution, and are fairly common in 
ios local areas. The bew ‘Idering ‘viel of Swell which 
meets the gaze in a country walk about Pard not unnaturally 
tends to obscure its less prominent deta is s. It was only after I 
had learnt to form some rough mental nape among the 
myriad forms of leaf and stem, a og my eyes more readily focussed 
themselves upon individual ohjeats, that I disoovered plenty of 
Aristolochia where before I had thought there was none. On 
more than one occasion a hovering female Papiko, Mee upon 
business, and searching for the precise leaf upon which to deposit 
an egg, revealed the obscured climber. There were other occasions 
where the twi ie stems of A. Hi — Paster oF from 
other << only broke into leaf among the branches of some 
tree _ 2 green ae had oseegtittly been passed unnoticed. 
The gen ch rs of Aristolochia, however, in 
contradistineton +8 othise olimibing plants, soon became apparent ; 
and not infrequently did the strong pene apie ne the Pence 
in the case of those species which possess it to arked extent 
(e. g. longecaudata and lanceolato- Dore, but not ‘Hubshiahal, zits a 
clue to thet whereabouts. 
As to the precise nature of see locality where the several 
species ! this genus were seen to grow free s it is difficult to 
generalise. A. longecaudata was pee found on swampy ground ; 
the lage-flowered A. didyma seemed to —— oatuidetabla shade 
and hum ; A. Huberiana, though sometimes overhung, was 
seen to gare best in full sunshine, cancel ing the tree which 
gave it support, while the remaining species, found sometimes in 
sandy soil in the open or amongst the débris of a forest clearing, 
seemed to attain their luxuriance i in a nice adjustment of light and 
all attempts at explanation. Unless one is to pen away all 
odd phenomena on the supposition of mere coincidence, the entire 
Aristolochia genus about Pard possesses a marked preference for 
communistic cows to a degree which suggested intelligent 
co-operation. as quite exceptional, in fact, to find any 
one species gro sing alone. Provided that the conditions were at 
all favourable, two, and quite ofte oh Oe distinct species would 
be found within ten or twenty paces from each — oie 
though the Seong Peter no less favourable, mor 
Aristolochia of any kind could be found for possibly the sian 
mile. I at first pee the thoroughness of my investigation, 
a I i ee a 2 
