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165

(1839-1846)
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10!>

A. De Stereocaulis et Pilophoris commentatio, auctore Th.

Fries. Recenset AV. Nylander.

Clar. Th. Fries litteratuiarn lichrmographicam
niono-grapbia dito\ it generis diflicilis Slercocouli, quod opus
dili-genter elaboratum varias contmet senlentias non probandas,
ut cied,). Uiilitatis igitur cujusdam sit, ut animadversiones
nonnullæ eo respectu oxponantur, et böe breviter, sincere
faciam, persuasus di-qnisiliombus criticis scientiæ potius,
quam laudibus vani-, consultum fore.

Pag. 2. dicit auctoi: »Usu microscopii — in interna
fiuctunm stiuctura præcipue (specierum) exoticarum eximios
inter formas habitu similhmas invem cbaracteres.» Nemo
alius videril cbaracteres microscopicos majoris esse momenli
in speciebus ovolicis quam in spocicbus europæis, sed res,
ni fällor, se in ambabus similiter babent. Ädminiculum idem
certe præbet microscopiiim in delerminandis licbcnibus
europæis ac iis aliiirum telluiis partium.

Ibid. »Centrum luijus generis in regionibus mere
tro-picis quærendum.» Hoc sane error. Saltem in Museo
di-tissimo Parisiensi vix ullum specimen adet>t e terra quadam
mere tropica, neo nisi c montauis et potissimo frigidioribus
terrarum calidarum. Contra abundantius et vegetius
occur-runt Slereocaulu in regionibus frigidis, r.ira evadunt in
tem-peratis ct evane>cunt 111 calidis.

Pag. 6. Vuiiæ lno res esscnt animadvertendæ.
Us-ncas, cum clar. Koeiber, primum babere locum admittero
videtur auctor et post eas in ordine systematico venire
Slcreocaiila et Cladouias. Svs te ma rite serioque perceptum
(non »lationibus. quibus cuique placeat» inniuim, ut satis
leviier dicit cl. Fries), organi^mum licbenosum quoad omnes
ejus paites icspieiens, Usneeos, Cladonicos et Stcrcocaulcos
gradu inferiore relinquere cogitur, primario loco inter
liche-nes adtributo Parmeliaccis, in quibus et thallus et apotbecia
el siniul spermogonia formas maxime in his \egetabilibus
evolutas adtingunt. Systema arbitrio tantum auctoris
super-structum, neo necessilate quadam sponle oblata, systemalis
nonien ægre ineretur, neque est nisi lusus animi fallax. Nec
ullius est sohditalis »certa analogia», quam cl. Fries inter
Sphærophora el Stercocaula in venit., nom nullo respectu

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