SCULPTURE OF THE TESTA OF GERMAN JUNCACEZ. 147 
disappointment, one must try to obtain only seeds with a testa fully 
stretched out. The different shades of colour I have endeavoured 
to name in accordance with Willdenow's * Grundriss der Krüuterkunde.* 
1. Juncus maritimus, Lam. Semina fusiformia, caudata, nucleo oblique 
lanceolata; costata et inconspicue reticulata, areis levibus; — 
caudis albis; long. 0:42-0:47", nucleus 0:30—0:35" ; lat. 0-1—0:12' 
2. J. acutus, L. Semina late ovata, longe vel reete vel oblique 
caudata; subtiliter reticulata, areis longitudinalibus levibus; coste et 
transtilla ne ferruginea, caudis albis; long. 0:5—0:65, nucleus 
0:35-0:4 ; 
3. J. vita L. Semina longissime caudata, caudis rectis vel 
obliquis; nucleus lineari-lanceolatus, sspe curvatus; multicostata, 
transtillis paucis gut bii o areis longitudinalibus levibus ; pallide 
erruginea, caudis albis; long. 0:9—1:0, nucleus 0:43; lat. 0:13. 
. J. conglomeratus; L. Semina iqi sissies: apiculata ; reti- 
aida areis transversis, lævibus cost. et transt. æqualibus; fusco- 
vitellina, apicibus nigris; long. 0:22-0:23; lat. 0-1-0°12 
. J. effusus, L. Semina oblique ovata, brevissime apiculata ; reti- 
culata, areis transversis, lævibus, cost. et transt. æqualibus ; vitellina, 
apicibus ferrugineis; long. 0-2-0-22 ; lat. 0*07—0-08. 
6. J. diffusus, Hoppe (?).* gawin oblique conico-ovata, breviter 
apiculata; reticulata, areis transversis, lævibus ; costæ valde inconspi- 
cuz; vitellina, apicibus ferrugineis ; long. 0:20—0-22 ; lat. 0:14-0-15. 
. J. glaucus, Ehrh.* Semina oblique ovata, lateribus planis, bre- 
diffusus, Hoppe. Under this name st different plants seem 
e z bined, Firstly, the sterile one from — pem Schnitan 
ith y t 
J. nine sy ater ; and secondly a plant w which pid ripe fruit, and 
which I p st Tom e Steinbe Stn niei near Hamburg (Chr. Luerssen), 
and from Dannenberg, x the Elbe (G. v. Pape). The latter has the deeply 
rowed stems, with sha so the d 
vaginas of J. glaucus, "- only differs from that species by its broader an 
use capsule. 
the genuine J. glaucus se more it. The seeds describ 
above, being uw of the so-called i p from Dannenberg, scarcely differ 
from those of Da aucus, only the longitudinal kedly obscure, and 
the seeds of J. glaucus are compressed on the sides, which may be owing to the 
greater bia of developed seeds. I therefore do believe that the above- 
menti ought to be refe i but should recommen 
the fertile J. diffusus to the attention of botani st But in the diagnosis " 
J. Matra the P of the fruit, “capsula oblongo-elliptica obtusa mu 
ought to be altered into Sanila motion obtusa m "— nata," as 
the o ede is indeed rather broad-elliptical than oblong-ellipti 
Ta 
