in the Brontes and their Brown Rust . 247 
is very similar (see below, p. 256). The spikelets do not 
readily break up, the cylindroid narrow * seeds 5 are grey with 
a purple or rosy cast, 9-5-10 x 1 mm, with an awn longer than 
itself, 15 mm., springing from between two teeth of the 
papery palea. These teeth are colourless and 1-5-2 mm. long, 
transparent. Nerves about five and fairly clear. 
B. tectorum germinated readily, sixteen out of twenty-five 
‘ seeds ’ sown having germinated on the fourth day (No. 745). 
The seedling was scarcely distinguishable from that of B. 
sterilis , and the same steel-blue stain diffused out during the 
first two days. 
B. madritensis , L, 
Is a species of Europe, North Africa, and the Orient. It 
occurs in Jersey, and has become established here and there 
on the Channel coasts of England and Ireland. B. diandrus , 
Curt., is a form with two stamens, a condition not confined 
to this Bronte. B. madritensis is almost indistinguishable 
from B. sterilis. It is about 16 x2 mm. Awn 25 mm. 
Teeth and long rachilla similar. All authorities put it near 
B. sterilis. 
The four-day seedlings, as well as those in pots a week 
old, were quite like those of B. sterilis , but slower in growth, 
the sheaths of the spears, 5-10 mm. high, being green 
without any bronze. In five days in the intermediate pit, 
the spears were 5 mm. high, but two of them had leaves 
opening and 2 cm. long. 
B. maximus , Desf. 
* 
Is a native of the Mediterranean and Caucasus, occurring 
also in Jersey, and comes close to B. sterilis and B. tectorum , 
but is larger. Boissier puts it near B. madritensis k It is 
reported also from South Africa. 
B. maximus. The ‘ seed ’ is long and narrow, the much- 
1 According to the Index Kewensis, B. maximus (Desf.) is the same as 
B. rigidus (Roth.) Cf. Desf. Flor. Atl., i, 95, t. 26, and Roth in Roem. and Ust. 
Mag. Bot., iv (1790), 21. Ascherson, Syn. d, mittel europ. Fl», p. 594, adopts the 
name B. villosus , Forsk, 
