Growth-Forms. 119 
Dactylanthus Taylori, according to CHEESEMAN, is parasitic on the roots 
of Schefflera and less frequently on those of Nofhopanaxr arboreum, Rapanea 
Urvnller, Pittosporum and Nothofagus. There is a perennial, fleshy, tuberous 
rhizome resembling, according to HILL (1909.: 439), a large potato covered 
over with warts, which varies according to age from less than 2.5 cm to more 
than 30 cm in diam. In the earliest stages of development observed, HiırLL 
states that the ends of the most delicate roots are selected by the parasite 
and that the young rhizome resembles a wart on the human hand. The 
monoecious flowers are produced on fleshy aerial stems, annually renewed, 
at most ı5 cm high. 
Cassytha paniculata is a twining, leafless plant having for its host shrubby 
species of the gumlands’ heäth e. g., Leptospermum scoparium, Pomaderris 
Edgerley:, Cassinia amoena &c., to which its slender, very stout, pale stems 
are attached by means of suckers. These stems pass tightly stretched from 
plant to plant, so that one may easily trip over them. The supposed indi- 
genous Cuscuta densiflora needs no special description. 
According to KIRK (1889: 138) Fusanus salhicifolia is during one stage of 
its existence a root-parasite. 
F. Water-plants. 
No line of demarcation can be drawn between water and swamp plants. 
The species of Myriophyllum, here included, could be quite well transferred 
to the latter class. Here both the purely lowland and those species oe 
to the high-mountain belt are dealt with. 
The species number 2o which fall into the two divisions, — free-floating 
(5 species) and rooting (15 species). Taking the latter class first, it comprises 
the growth-forms as follows together with the number of species in each: — 
submerged 6 including rush-form 3, grass-like form ı, ribbon-form ı and mat- 
form ı; floating 7 including entire-leaved 5 and ERENE 25 partiy submerged 
partly PER 2, 
The free-floating consists of Azolla rubra, 2 species of Lemma and 2 A 
Ürrienlarie 
£: Herbs and semi-woody Mh 
The number of species of this class confined to the lowlands is EN of 
which ı17 are wandering and ı70 spot-bound, ı7 being annuals or biennials, 
41 summergreen, 246 evergreen, ı7 semi-woody and 270 herbaceous. With 
regard to the stature of the species 20 are very tall (more than go cm), 3gtall 
(60—g0 ie 37 of medium height (30—60 cm), 83 small (15—30 cm), 108. 
very small (less‘ than ı5 cm) of which 44 hug the ne or are, at most, 
1) e.g. — Sc ipus dene, Trapmire Pech, r 2 species of a (mis 
Pobeliata and. Dr albosericıa. : 
