164 
B. Seeds not appendaged. 
a. Leaves reduced to radical sheaths. 
a . Pith continuous. 
a '. Capsule not mucronate 
b ". Capsule mucronate. 
a " . Caespitose. 
a” ", Capsule oval-turbinate, 
truncate 
b" Capsule oblong-turbinate, 
shortly acuminated into 
a mucro 
b'". Plant extensively creeping ... 
b'. Pith interrupted. 
a. Capsule elliptic oblong, mucronate ; 
stem deeply striate 
b. Capsule rounded obovate blunt 
mucronate, stem finely striate... 
b. Leaves not reduced to radical sheaths. 
a. Fiowers clustered. 
a. Flowers in a terminal head. 
a. Plant with radical leaves only... 
b. Plant with leaves on the stem... 
b. Flowers in panicled- clusters. 
a. Capsule obtuse at apex 
b. Capsule acuminate at apex. 
a. Outer perianth segments 
obtuse. 
a. Capsule (except mucro) 
covered by the perianth 
leaves; panicle branches 
spreading 
b. Capsule exposed above 
the perianth leaves ; 
panicle branches erect. 
b. Outer perianth segments 
acute. 
a. Capsule pale reddish 
brown ; perianth re- 
curved at tip 
b. Capsule dark brown, 
glossy ; perianth not 
recurved at tip. 
• a. Leaves compress- 
ed; capsule gradu- 
ally pointed 
b. Leaves terete; 
capsule abruptly 
pointed ;.. 
J. effusus. 
J. conglomerate. 
J. dijfusus. 
J. balticus. 
J. infleocus. 
J. jilif or mis. 
J. capitatus. 
J. jpygmaeus. 
J. supinus. 
J. obtusifolius. 
J. alpinus. 
J. acutiflorus. 
J. articulatus. 
J. nigritellus. 
