279 
Trifolium subterraneum, L. 
foothills near Turica, flowers and fruit, 24-5-17, 7 urrill, 297. 
Mistr. Cent. and S, Eur., N. Afr., i 
_ are prostrate, up to 1 ft. in length and closely applied to the 
ground. The whole plant is very hairy. The flower-heads are 
The calyces have 5 long acicular teeth bearing long, distinct 
hairs. Soon after fertilization the calyces become swollen and 
bend downwards, exposing the terminal bud which commences 
to develop and produces numerous sterile flowers, each of which, 
when fully formed, is composed of a calyx tube with 5 long, 
acicular, spreading, hairy teeth. These sterile calyces bend 
over in succession and finally closely envelop the developing 
fruits. Each fruit contains a single seed. eanwhile the 
common peduncle has lengthened and most of the fruit-heads 
et pushed below the loose surface of the soil. The sterile 
calyces of those thus buried are white and etiolated, of those 
remaining above ground pale green. ‘The sterile calyx tubes 
are practically solid and their teeth become hardened into stiff 
bristles. Eventually the entire heads become detached. 
Triiolium fragiferum, L. 
Near Snevee, side of R..Spanc, in flower and fruit, 24-7-17, 
Turrill, 539. 
Distr. Eur., N. Afr., Orient. 
Balkans: General. ; 
The swollen fruiting-calyces are somewhat more hairy than 
in thé majority of specimens of this species in Herb. Kew. 
Trifolium resupinatum, ZL. 
seme Plain ad Krusa Balkan, in flower, 4 & 5-18, Harris, 
114; Paprat District, Krusa Balkan,: in flower and fruit, 6-18, 
Russell, 91; 8-10 km. north of Salonika, in flower, 13-4-17, 
Turrill, 47; near Kopriva, in fruit, 29-5-17, Turrill, 349a. 
Distr. §. Eur., Orient. 
Trifolium hybridum, L. 
the side of the R. Spanc, near Snevce, white or pink- 
B 
white flowers, 24-7-17, 7. urrill, 538. 
Distr. Cent. and S. Eur., Orient. 
Balkans: General. 
