ILLUSTRATIONS OF INDIAN BOTANY. 79 
suddenly pointed, testaceous and shining except the short pubescent point : estivation imbri- 
cated, quincuncial. Petals hypogynous, 5, alternate with the sepals, shortly anguiculate : 
eestivation twisted. Stamens hypogynous, 10, all fertile: filaments united at the base into an 
urceolus, free and filiform-above: anthers cordate-ovate, erect, 2-celled, opening by two longi- 
tudinal clefts. Torus slightly elevated, supporting the staminal urceolus and the ovary. Ova- 
rium roundish, coriaceous, glabrous, 5-celled : ovules 2 in each cell, pendulous, collateral. Styles 
5, distinct : stigmas slightly dilated and lobed. Fruit (a muculanium) with a fleshy epicarp, 
enclosing 5 distinct, bony, l-seeded carpels. Seeds pendulous. Embryo in the axis of fleshy 
albumen : cotyledons flat, foliaceous: radicle short, superior, pointing to the hilum.—Shrubs. 
ves d and opposite near the flowers. Stipules 2, subulate. 
Peduncles axillary ]-flowered, often by abortion transformed into circinnate spines. 
Arrinitigs. The only genus referable here has been placed by De Candolle with doubt in 
Chlenacee, to which we cannot agree ; that order having the calyx and gynecium in a ternary, 
while the corolla and andreecium follow the quinaty arrangement. Kunth hesitatingly places it 
in Byttneriacee and the tribe Dombeyacee, and there is no doubt that the affinity is very great ; 
it is now separated on account of the imbricate (not valvate) calyx, the ovules pendulous (not 
erect or ascending), and the radicle superior (not inferior), rather than invalidate the character 
of the order by its insertion. In many points it agrees with the character (but not the habit) of 
Oxalidez, forming another link between the group of Malvaceous orders, and the Geraniacee. 
RN. 
Geocrapnicat Distrisution. Of the four known species of the genus Hugonia, one is 
found in continental India, one in Ceylon, and two inthe Mauritius, H. ferruginea though des- 
cribed by us as an Indian plant, 1 have never seen growing except in Ceylon, and there it appears 
as a trailing shrub, seeking support from the surrounding jungle. 
proportion, namely, one-fifth part. ed 
No additions have been made to this order since the publication of our Prodromus. 
EXPLANATION OF FLATE 33. 
1. A branch of Hugonia mistax, showing the leaves, 
flowers and fruit—natural size. 
. Lower figure—Sepals and petals removed, show- 
ing the filaments united at the base into a short tube, 
upper one—the stamens removed to show the extent to 
which the filaments are united, and that they are alter- 
nately longer and shorter. 
3. Sepals, ovary, style, and stigmas. as 
4. A fruit cut transversely, showing four seminifer- 
ous cells, and four empty ones alternating. The nucu- 
lanum consists ‘of 4 or 5 partially united, 
carpels, or nuts: the alternating cells in this figure are 
in the lines of separation, and are owing to a depres- 
sion on the sides of the nuts. 
XXVI.—TILIACEA. 
This order which takes its name from Tilia, the Linden or Lime tree, a northern genus, 
is yet principally of tropical origin, several large genera being found in India, and many 
