150 SCULPTURE OF THE TESTA OF GERMAN JUNCACEX, 
24. J. supinus, Mch. Semina obovata, apiculata ; regulariter reti- 
culata, areis transverse lineolatis ; vitellina, apice ferruginea ; long. 
0:21-0:24 ; lat. 012-013. 
25. J. squarrosus, L. Semina oblique obovata s. turbinata, irregu- 
lariter compressa, non apieulata; grosse, sed regulariter reticulata, 
-areis lævibus ; brunnea ; long. 0:3-0:35 ; lat. 0°18-0°2. 
26. J. compressus, Jacq. Semina late obovata s. oblique obovata, 
apiculata ; transverse reticulata, costis fractis grossis, areis levibus ; 
badia, apice fere nigra ; long. 0:18—0:2 ; lat. 0:9—0:12. 
27. J. Gerardi, Lois. Semina turbinata, obovata vel oblique ob- 
ovata, apiculata; transverse reticulata, costis fractis grossis, areis 
levibus; ferruginea, apice nigro-ferruginea ; long. 0:22-026; lat. 
0:12-0:15. 
28. J. tenuis, Willd. Semina oblique obovata s. lanceolato-ob- 
ovata, apiculata; transverse lineata (costis inconspicuis), areis trans- 
versis, subtilissime lineolatis (?) ;* pallide ferruginea, apice ferruginea ; 
long. 0:22-0:26 ; lat. 0:08-0:1 
` 29. J. Tenageja, Ehrh. Semina lanceolato-obovata, obliqua, apicu- 
lata; regulariter reticulata (costee inconspicuze numerose, transtilla 
subtiliora), areis subtilissime lineolatis (?) ;* vitellina, apice ferru- 
ginea; long. 015—0:2 ; lat. 0:06—0:09 
30. J. spherocarpus, N. v. E. Semina ovata, vel obovata, oblique 
et brevissime apiculata; subtiliter reticulata (costis inconspicuis) areis 
transversis, minimis, lzevibus; ferruginea; long. 0*14—0:18 ; lat. 0:08- 
01. 
31. J. bufonius, L. Semina doliiformia, retusa, brevissime apicu- 
lata ; subtiliter reticulata (costis i picuis), areis transversis, leevibus ; 
pallide ferruginea, apice ferruginea; long. 0:18-0:22 ; lat. 01-015. 
From the foregoing, it will be easy to form some conception of the 
differences observable in the German species of Juncus. In the | t 
instance, the species with caudate seeds (J. maritimus, acutus, Jacquin, 
stygius, castaneus, triglumis, biglumis, tripodus, and monanthos) must 
be grouped together. Their seeds are either ovate, and only with short 
appendages (J. trifidus), lancet-shaped (J. stygius and monanthos), OF 
fusiform or scrobiform (J. maritimus, acutus, Jacquini, castaneus, tri- 
* This is an extremely delicate unevenness in the base of the meshes, beo 
owing to very fine but prominent granules, or (what is essentially the same, 
a system of extremely delicate, impressed, reticulate lines. 
