NOVA GRAMINUM GENERA.

21

novem evadant. Gluma, qua; in aquaticis gramini-bus sunt mutica, in sicciori humo fiunt subarißatce,scilicet acumine terminali, non vero dorsali. Glu-]hcB & calycina & corollince, aeque ac involucra, in ma-ritimis excrescunt & acumine rigido longiori ter-minantur.

5- v.

METHODUS 'GRAMINUM CALYCINA.

I. RAC 11 IDE A,

MANISURIS, S. N. Ed. xirr. p. 762.

charact. Racbis articulata , compreffa, nnila-

ESSENTiA- ter alis: calyce orbiculato, operculatq, con-prs. vexo, marginato, florem hermaphroditum

in cavitate articuli includente.charact, Racbis articulata, linearis, com-

natural. pressa. Latere plano altero longitudi-nalitcr per seriem unicam imbricata:flosculis hermaphroditis in ipsam cavi-tatem racbis immersis, valvulis arcteclausis. Margine racbis flosculis neutris,bifariis, alternantibus, exflantibus,Flores Hermaphroditi Laterales «CALY-x. Gluma unillora, bivalvis. Valvula exte-

rior subcartilaginea vel coriacea, oper-culata, disco convexo, radio plano ad-presso, rotundata, integra vel apice &lateribus emarginata. Valvula interiorB 3 in