432 TRANS. OF THE ACAD. OF SCIENCE. 
distinct ribs—semina sig jh - some species the marks 
are coarser, in others more delice 
We divide the ree as seuss noha ina reticulata, lineolata, 
d costata; to * the former belong the tailless, to the 
ange all she specks the seeds of de soagt I have been 
able to fal de — to their surface markings, in the 
following table. r species are in salen: the foreign ones 
in Roman t type: 
I. SEMINA RETICULATA, vix seu distincte apiculata. 
1, Semina levissime irregulariter reticulata seu levinseula, n non costata 
nec li a. Omnes e Juncorum genuinoru 
J. Pacificus. compressus, Siliformis, Smithii. 
2, Semina regulariter reticulata, areis levibus seu levissime longitudi- 
naliter lineolatis. Nostrates e Juncorum articulatorum sectione, 
pauci exotici graminifolii. 
J. militaris, Elliottii, scirpoides, phteocephalus ; J. Tasmanicus,* squar- 
3. Semina regulariter reticulata, areis tenuiter transverse lineolatis, 
Omnes ad J. articulatos perti: 
J. pelocarpus, articulatus, alpinus, pallesce Bolanderi, brachycarpus, 
nodosus, xiphioides, Mertensianus; J. eylvaticus, atratus, 0 i 
rudis, oxycarpus, supinus, Leschenaultii. 
Il. SEMINA TRANSVERSE LINEOLATA, levissime costata ; vix seu distincte 
_ apiculate sen breviter candata. 
norum et peas Aer walks sectionibus. 
J. Balticus, setaceus, dichotomus 
2, Semina areis angustissimi # tratisvorse lineolata. FE Juncorum gen- 
uinorum et graminifo: rsa sectionibus et Juncelli species unica. 
J, effusus, patens, tenuis, Sarees bufonius, repens, saginoides; J. glau- 
cus, pauciflorus, bulbosus ® 
E Juncorum genut- 
II, Semrna costara, plus minus caudata. 
1, Semina pony costas sormmane pauciores conspicuas lineolata ; os oh 
‘ ua breviter ca) 
J. Remerianus, omnia, marginatus, longistylis, Buckleyi; J. mariti- 
2. Semina in a oo od one ve aerdigrocat apiculata seu plus 
i Juncorum sectionibus 
J. areticus, Drummondii, Hatt, biglumis, pti p RES ee 
sub-caudatus, 
3. bear inter costas numerosissimas tenues seu tenuissimas 
ree Hneolat seu alain: ; caudata. Ex omnibus Juncorum sictbnk: 
J eevk Vaseyr, triglumis, castaneus, stygius, trifidus, Canadensis, 
caudatus, asper; J. Jacquini. 
It will be observed that in this arrangement some form 
which I consider as belonging to one specific type had to bi 
separated ; rae, the Pacific form has been removed from 
J. Balticus. 
seed alone are not sufficient to establish specific distinction. — 
* The Tasmanian J, faleatus, which I consider a distinct sepcies. 
