2 
secundariae plerumque 3 (rarius 2 vel 4), spiculatae, 1-1-5 cm. longae ; 
rhachis rhachi communi similis, sed tenax, flexuosa, apice spicula 
rudimentaria terminata. S iculae sessiles, subulato-lanceolatae, 1 cm. 
longa, carinis anguste alatis, apice bidentata. Valva superior 7-8 mm. 
onga, minutissime rugulosa, e medio subulato-caudata subula sca- 
berula ; ejus valvula 5 mm. longa, lateribus inflexis tenuibus fere sese 
co Antherae oblongae, 0-5 mm. longae. Styli ieee 
15 mm. longi; stigmata 2 mm. longa. Caryopsis fere 3 mm. — 
Rottboellia truncata, Maiden et nes in Proc. Linn. Soc. N. 8. WG 
vol. xxxi. (1906) p. 741, tab. 
AusTRALIA: New South Yandama, A. W. Mullen. 
The affinity of this grass with Xerochloa and Stenotaphrum is quite 
evident. The shape of the parts of the spikelet recalls that of species 
of Xerochloa, whilst their arrangement in small spikes on the fragile 
rhachis of a primary spike resembles that of oo There is 
no structural resemblance with Rottboellia—O. Sra 
Fic. 1, ligule; 2, sale spike, somewhat opened out; 3, lower glume; 
upper Spel 5, low r floret ; 6, valve of same, flattened out; 7, valvule of 
_ me, Naoki ; 8, fertile floret, back view ; 9, valvule with flower 3 ; 10, grain. 
en 
