277 
the distribution within transgangetic India being sub-divided as fol¬ 
lows :— a. Arracan, Chittagong, Assam; h. Pegu, Tenasserim, Malay 
Peninsula; c. Andamans (including Coco Islands,) Nicobars, Sumatra 
and Java. This is necessary for a proper understanding of the peculiar 
features of the flora of the island which forms (or at any rate is an ex¬ 
cellent representative of) the area wherein these three lines of distribu¬ 
tion meet and in which their species intermix. 
3. An analysis in terms of the preceding sections is undertaken 
and the arithmetical values of the various relationships computed. 
§ §. List of the Plants collected in Diamond Island. 
MENISPERMACE^. 
1. Ctclea peltata Hook. P. and Thoms. Common. 
NYMPH^ACEHl. 
2. Ntmth^a Lotus Linn. In the only tank, uncommon ; the red 
form is not present. 
3. Nelumbium speciosdm Willd. In the tank. 
CAPPARIDE^. 
4. Capparis sepiaria Linn. var. grandifolia Kurz (MSS. in Herb. 
Calcutta) ; forma ramis foliisque glabris, folds floribus et fructu quam in 
formis varietatum aliarum multo majoribus. Distrib. Table Island 
and Great Coco Island, (ipse) ; South Andaman, (Kurz). In Madura 
Island and in Bali, (Teysmann in Herb. Calcutta). In Timor and in 
Cochin-China (as Mr. Hemsley informs me) occur forms that connect 
this very distinct looking form with the typical plants. Branches green ; 
leaves regularly elliptic, i^etuse ; petioles 0'5—0*7 cm. long ; laminse 6—10 
cm. long by 4—5 cm. broad, quite glabrous both above and below, or 
with a few scattered hairs, that soon disappear, on young leaves beneath ; 
flowers 15 mm. in diam. ; pedicels 18 mm. long ; gynophore 8 mm. long ; 
fruit 12 mm. in diam. (in Java specimens) to 14 mm. (in Diamond 
Island ones). 
In the ordinary Indian plant, which also occurs without any con¬ 
siderable variation in Burma and in Perak, as well as in the S. Indian 
variety (incanescens) and in the Ceylon variety (retusella), the mea¬ 
surements are ; petiole 0'2—0 4 cm., lamina 2—3 cm. long by 1-5_2 
cm. broad; flowers 7—'12 mm. in diam., pedicels 16 mm. long ; gyno¬ 
phore 5—6 mm. long ; fruit 7—8 mm. in diameter. 
Except, however, in the greater size of all its parts—most notable 
as regards the anthers—which in var. grandifolia more than thrice exceed 
59 
