no 98 : 
teretes, arctae, tenuissime striatae; laminae anguste lineares, 
longe apicem versus attenuatae, acutae, ad margines superne 
scaberulae, caeterum laeves, pallide virides, ad 12 cm. longae, 
d 2-5 mm. latae, summa basin inflorescentiae longe excedens, 
costa nervisque lateralibus approximatis tenuibus. /nflorescentia 
fere epedunculata, basi in vagina summa inclusa, tota ad 25 cm. 
longa; rami infra medium siti circiter 1-7—1-4 cm. longae, superi- 
ores sensim breviores. Spiculae plerumque 4 mm. longae. pallide 
virescentes, hincinde leviter purpureo-suffusae, imperfecte 
apertae; una uniuscuiusque paris brevissime, altera longius pedi- 
celatae vel utraque subsessilis; rhachilla flexuosa. Glumae 
hyalinae, albidae, perangustatae, lineari-lanceolatae vel lineares, 
inferior acute acuminata, superior obtiuscula, utraque superne 
in carina viridi asperula. Valvae glumas paulo excedentes, 
glumae inferiori simillimae, nisi inferne paululo latiores et minus 
acutae, sursum descrescentes, 4-255 mm. longae. Valvulae 
valvae > aequantes, in dorso curvatae, carinis viridibus superne 
minute scaberulae. Lodiculae 0°25 mm. longae. Antherae 
breves, oblongae, 0-3-0-4 mm. longae; filamenta 0-6 mm. longa. 
Styli O2 mm. longi; stigmata 0-6 longa. Caryopsis oblonga, 
stylopodio paulo incrassato coronata, ad 1 mm. longa, albo- 
viridula. Semen pallidum, 0-8 mm. longum, 0-3-0-35 mm. 
latum, 0-15 mm. crassum. Ectrosia? mutica, Hack. ex Probst 
in Mitteil. d. naturforsch. Ges. Solothurn, 5, xvii. Ber. 1911-1914, 
p- 169 (1914), nomen tantum. 
SWITZERLAND. n alien grown from wool refuse at 
Derendingen Mill, near Solothurn, Probst, 1918. 
As the filaments sie never beyond the stigmas, the small 
the tips of stigmas protruding laterally from the florets, ‘so that 
xenogamy is not altogether excluded. The pollen grains 
While this article was going through the Press a copy of Dr. 
Probst’s Zweiter Beitrag zur Adventiv- und Ruderal-flora von 
whilst the largest of the leaves is 18 em. by 45mm. The ill 
tration is intended to accompany the enu 
advena, Stapf, gen. et spec. nov. on p. 17 
4 us- 
meration of Thellungia 
