TRIASSIC FLORA OF BALI) HILL. 
Obsef vat ions. - l^lie plaiit-steins in the present series, referred to 
Phijllotheca indica, have the characteristic short internodes seen in 
the Raniganj fossil remains. The slender filamentous leaves found 
attached, or in close association with the stems, show their relation- 
ship to the ahove s])ecies rather than to P. au,s'tra/is, which has the 
leaf-whorls more closely adherent to the stem. This conclusion is 
further supported by the form of the interjiodes, which tend to 
widen distally and also bear strong, linear, superficial grooves. The 
stem in one example (fig. 4) consists of about eight segments, whilst 
the other (fig. 15) has seven ; it is slender and closely comparable 
with some of l^Tistmantel s figures of this species. 
Di'mensions of the Yictonan Spectweas. — The stem here figured 
(fig. 4) measures at its widest j)art about 2 ■ 3mm. ; the second 
specimen (fig. 15) has a stem diameter of only l‘5mm.^ Indian 
s])eciniens figured by Feistmantel measure from 2 '5 to 5mm. in 
diameter. As a contra-comparison, a ty])ical e.xani])le of Phijllotheca 
australis in the Xational Museum collection has a stem-diameter of 
14mm. 
Leaves.- Although com])lete leaf- whorls have not been ])reserved 
in the jiresent instances, the ocwasional leaves are similar to those 
of P. ittdiea, both in sha])e and habit. 44ie leaves are of moderate 
length, acicidate, and are bent outward or upward from their point 
of attachment, and often strongly recurved near the extremity. 
Rhizowata u ith Tubers. — Portions of straight or flexuous rhizomes, 
bearing sac-like bodies appended by a filamentous attachment, are 
not uncommon on some of the slabs of cream-coloured, porcellanous 
mudstone from the trench on .Bald Hill, two of which are figured 
(figs. 6 and 9). The coarse sclerenchymatous texture of the rhizome 
is shown in strong relief, whilst the attaching filaments and tubers 
are of a more tenuous structure. The latter are represented by a 
thin imj)ression or mere stain on the rock. T liese sac-like bodies 
are not so well-rounded as in moderJi Eqiusetaceae, or the fossil 
Equisetit.es figured elsewhere.'® This irregular form of the tubers 
may therefore be ])eculiar to the allied genus Phjllotheca , to which, 
up to the present, no rhizomes or tubers seem to have been assigned. 
Since these tubers are here associated in the same horizon and on 
the same slabs, their probable relationship to P. indica seems to be 
fairly strong. 
Eodal Diaphrajms. In fig. 15 can be seen two nodal diaphragms, 
and since they are dis])osed at right angles to the surface of the 
stem-nodes, seem to point to their having been the nodal attachment 
of branches ; otherwise to account for their present position on the 
stem would necessitate their displacement to a plane at right angles 
to their original position, and this could hardly have taken place 
If) See E. Bnn-hurdU Danker, figured by C. Hewartl, 1898. p. 279. fig. (55 ; or E. i,ol'oh(imne 
Sewiird, ibid, j>. 280, flg. 00. Also E. Kontlitim/ieiixin nuipmim, 1912, pi. XII., fig. 1. 
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