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98
rianis C. hyperborca* e~quidem video plura frtielibus nervosis
e. s. p. Ilis rebus eoaelus fui ad vegcialionis. raliones, magis
essenlialcs d- couslanles, licel vulgo ncgleclas, abire. Sic v. c.
ulrum radix vere cæspiiosa vel stolonifcra , esl dißerenlia
per-pelua, modo allendilur ad inuovalionis iudolem , nam
slolornfc-ræ, ut C. vulgaris, utique in cæspitem eondensari possunt,
slo-lones tamen semper edunt. Cæspitosæ genuinæ a ut em
sloloni-bus prorsus carent & innovationes ex’ nodis infimis semper
ere-clæ, quare bæ in al tum crescunt ceutripelæ, cum stoloniferæ
horizontaliter dilatantur aul cenlrifugæ evadunl.
Alia memorabilis dißerenlia posita esl in culmi pede;bic
vel cingitur vaginis aphyllis (Aphyllopodæ) vel vaginis
omni-bus foliiferis imis iicet emarcidis (Phyllopoda*). Quanti
mo-menti bæc differenlia est, collatis C. strida C. acuta, C.
cæspiiosa ck C. vulgari, facile videbis. Ex hac nota subdivi-
\
sionem primariam sumo, cum multis aliis diflerenliis suflulcialur;
vaginæ aphyllopodum semper sitnul pius minus fibrillileræ.
Pliyl-lopodas, quæ majorem numerum constituuul, iterum subdivido
e foliis siccitale margine revolulis aut involutis, nota constans
maxime iaeile, modo specimina non mox comprimuntur,
semper palpabilis. Foliis involutis præsentibus folia ima emarcida
/
densum fasciculum formant, bracleæ semper subspalbaceæ
eva-dunt, spicas virgineas arreclas amplecLentes. — Ne modo trans-
scribam definitiones Novitiaium, ad generis communem exposi-
* /
tionem accommodalas, böe loco alia ralione excepi diüerenlias,
vegetationis in fronte colJocans.
Hane disposilionem il- lulam facilem pro specierum
exa-mine lingo, at nos non fugil •duplicem illam seriem,
Arctica-rum nempc de temperatiorum vsse magis naUnalem. Sic
Carex maritima per C. cryp/ocarpam & salinam omniuo
descen-dit ad C. subspathaceam; C. cryptocarpa per C. lurmat
olepi-dem & hyperboream in C. saxat Hem. Singulares profecto sunt
squanne in Arclicis elongatæ perigynia apice oblusa nec
pro-ducla , qua duplici ralione squamæ perigynia virginea oblegunt,
ul a frigore arceant. Sed ut climata sine limile in se invicem
Iranseunt, sic eliam islæ diflerenliæ.
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