124 
(Tubiflorae) may also be regarded as a natural one, its ma 
partons feature being the elongated cylindrical serail 
tube. Sixteen well-defined species are assigned to this group, 
and it would appear that relatively large fruits and seeds are 
srrelated with jong-tubed flowers; in the case of five species, 
however the fruits are unknown. ‘'wo other imperfectly known 
ecies, S. donnaiensis and S. usitata, from Cochin-China, no doubt 
also belong to this section, making a total of eighteen species. 
he section falls naturally into two divisions or sub-sections. In 
one which contains nine well-known and the two imperfectly 
known species just mentioned, the inflorescences terminate 
sie shoots and S, Wisp-comies is the ty ical species. 
In the other sub-section the flowers are arranged in short, axil- 
lary inflorescences furnished only with minute bracts. Of this 
sub-section S. Ignatii, Berg., is the best known species. Glab- 
rous anthers inserted at the top of the corolla tube are charac- 
teristic of all the members of the section and the ovary is glab- 
rous in all cases. S. Waliehiane, which is placed in this “sub- 
section, should perhaps be more rpery put in a division 
ies a peculiar baton in the Nuz-vomica sub-section with 
its ‘Sepiy split corolla tube, but from the general structure of 
the flowers, inflorescences and fruits its natural affinity is with 
the toy aed species. In the following account the various 
species are arranged in key form under “these four sections. 
Strychnos is essentially a genus of climbing woody plants 
living for the most part in ‘moist tropical forests, a few are 
described as shrubs, and at least six of the species under con- 
sideration are trees, tet S. Nuz-vomica, S. Nuzx-blanda, 
S. potatorum, S. arborea, S. ligustrina and S. polyantha. There 
is nis probably, in addition to these, lt tree in Queens- 
land of which the wood only is kno The tree species 
are found in relatively dry localities, and occur get in open 
country or in the drier deciduous forests. It is unfortunate 
that the information given by palteclors as to the general con- 
ditions under which the species were growing is as a rule very 
meagre, 
Economic Prorertiss. 
Economically, the two most important gers ae with are 
S. Nua-vomica and S. Ignatii, on account of the pak ware 
and brucine oa in the seed. The se waar of S. luci 
S. cinnamomtfolia ta, and possibly other species, also contain 
a fair percentage of alkaloids, but there is no evidence that they 
have been commercially exploited. The bark of S. Gautheriana, 
Pierre, known under the native name ‘‘ Hoang Nan’’, is said to 
be very efficacious in cases of leprosy and also to be employed 
by the natives in Tonkin as an antidote for hydrophobia.* 
* Kew 1877, 31; ur, Le Hoa & d Kew 
Bull. TOLL aes, wine ie Ste are given. yeas S. Gautheriana 
(p. 203), where the subject is further discussed. 
