60 K. Domin: Second Contribution to the Flora of Australia. 
large (in some specimens from Port Darwin the panicle attains the length 
of more than 75 em) with extreemely scabrous rhachis and branches. 
14. Panicum notochtonum Domin, nov. spec. 
P. javanico Poir. simile affineque, sed differt praecipue spiculis glabris 
ca. 43/, mm longis, gluma prima minuta amplectenti truncata sed carina 
in apicem brevem acutum producta vix ?/, mm longa interdum vix 
visibili, gluma secunda 9 nervi, tertia 7 nervi, nervis parum prominentibus. 
New South Wales: Darling River. 
This is the P. helopus of Bentham's Flora Australiensis (VII, 476), 
but not of Triner, which is on the authority of Hooker (Fl. Brit. Ind.) 
identical with P. javanicum of Poiret. "The D helopus var. glabrior Benth. 
is, however, distinct from P. notochtonum as well as from P. javanicum. 
In the vegetative organs there is a striking similarity between our 
species and some East Indian forms of the true P. javamicum, but the 
minute first glume and the greater number of nerves in the other glumes 
render it impossible to regard the Australian plant as a variety of P. 
javanicum (= helopus). 
The above mentioned specimens from Darling River are rather small 
with lanceolate leaves, which are sometimes cordate at the base and 
which have more or less undulate margin and are sprinkled with long 
hairs arising from tubercles. Fruiting glume is as in P. javanicum trans- 
versely rugose and has a short awn-like point. The plant figured as 
P. helopus by J. H. Maiden (Useful Australian Plants no. 82, Agricult. 
Gazette N. S. Wales 1903) seems to me to differ from P. notochtonum. 
15. Patersonia sericea R. Br. var. dissimilis Domin, nov. var. 
Differt a typo foliis elongatis usque plus 3 dm longis, scapis foliis 
fere duplo brevioribus. Habitu P. longifoliam revocat. 
New South Wales: Cape Sturt, coll. Backhouse. 
This fine variety much resembles P. longifolia, to which species it 
was referred by Bentham in his Fl. Austral., although there can be not 
doubt that it belongs to P. sericea. The leaves are broader than in P. 
longifolia, while the spikes and especially the outer bracts are longer 
(till 35 mm) than in this species. 
The Patersonia subalpina from Baron von Mueller represent another 
interesting variety of P. sericea, distinguishable by its tufted growth, and 
by its short leaves which are about 10—16 cm in length and 3—4 mm 
in breadth. The scape including the spike is almost shorter than the 
leaves. 
16. Rhipogonum Danesii Domin, nov. spec. 
Frutex alte scandens inermis glaberque, foliis breviter petiolatis 
evaginatis oblongis vel elliptico-oblongis ca. 11—13 cm longis et usque 
4 em latis coriaceis nervis transversis reticulatis prominulis percursis, 
racemis simplicibus axillaribus foliis pro more conspieue sed haud multo 
longioribus, floribus albis magnis fere sessilibus vel breviter pedicellatis, 
petalis ovatis obtusis ca. 5 mm longis et usque 3!/, mm latis, antheris 
