I r - -
quelques Nostoohinées. (Mémoires de la Soo. imper, des so. nat. de
Cherbourg. Tome V. Août, 18,57. 3) Fischer, Beiträge zur Kenutniss
der Xostochaceen. Bern. 1853. 4) Hicks on gonidia of Lichens
(Quart. Journ. of microsc. Science. 1861. X. II. p. 90.). 5) De Bary,
Beitrag zur Kenntniss der Xostooaoeen. (Eegensb. Flora. 1863.).
Distribuo in duas subfamilias :
1. X o s t o o e a e , sporis destitutae.
2. S p e rm o s i r e a e , sporis instruotae.
Subfamilia I. IVostoceae.
Thallus gelatinosus, varie coloratus, aut glohosus v. subglobosus
aut foliáceo-memhranaoeus, irregulariter expansus, saepe bullatus, tre-
mulus, peridermate oinotus. Trichomata moniliformia, flexuoso-curvata
et implicata, nonnunquam vaginata, e cellulis vegetativis (articulis) globosis
vel oblongis leptodermaticis, plerumque cytioplasmate granuloso
pallide aerugineo repletis composita, aut medio aut utroque fine cellula
singula perdurante paohydermatiea, exacte sphaerioa, rarius oblonga,
homogénea, non colorata hyalina instructa, sporis destituta.
Plantae terrestres, bryophilae vel aquatioae.
X X X V . X o i s to c -Vaucher (1803).
Genus unicum cum charaotere Subfamiliae.
Trichomata gelatina involvente liberata sese movent fere ad Oscillariarum
morem.
Cavendum, ne Collematis status juveniles pro Xostoo quodam habeantur.
a. Thallus globosas vel subglobosus.
t Trichomata plus minusve distincte vaginata. (Hormosiphon Ktz. e parte).
N. minutissimum ATte. (Phycol. gener. p. 204. X. 1 . Actien 1836!).
X. minimum, globosum, diam. ad ‘/s '" , durum, peridermate fuscescente,
adhaerens; trichomatibus tenuissimis, densissime flexuoso-intricatis,
saturate aerugineis ; articulis globosis confertis ; vaginis indistinotis ; cellulis
perdurantibus articulorum diametro subduplo majoribus. v. v.
Diam. artioul. ‘/asoo— V2000'" = 0,00003—0,00004".
N. confluens Ktz. (Tabul. II. p. 1. X. 548. T. I. F. II I .) . FT.
antecedenti admodum simile, sed thalli confluentes, periderma non coloratum
aetate provecta diffluens, trichomata minus dense intricata et
cellulae perdurantes articulorum diametro duplo majores sunt.
Hab. in locis paludosis montium Germaniae. Prope Cervimontium
Silesiae detexit beat, de Flotow.
N. tenuissimum (Hormosiphon tenuissimum Ktz. Phyool. gener.
p. 209. X. 1.). X. aquatioum, globosum aut subglobosum, pisiforme,
fusoescens; trichomatibus valde in tric atis, distinote vaginatis, dilute
aerugineis ; ’articulis oblongis, laxe oonnexis, diametro subduplo longioribus
; vaginis crassis, homogeneis, luteolis. v. v.
Diam. articul. ‘/looo— ‘/« o '" = 0,00008 — 0 ,0 0 0 0 9 ", vag. '¡m
1/ 222'" = 0,0003—0,0004", cell, perdurant. ' I n f “ = 0,00011".
Hab. in stagnis, fossis, per Europam passim.
N. rupestre Ktz. (Speo. p. 296. Eabenh. Alg. X. 87., inprimis
645 h! omnia evolutionis stadia includens, unde patet, species Kiitzingii
sequentes hue pertinere: Hormosiphon furfuraoeus, gypsophilus, macrosiphon!
Xostoc gregarium Hantzsch in Eabenh. Alg. X. 1340. non
Thuret!). X. thallo parvo, globoso, oliváceo - fusoesoente, peridermate
plus minus evoluto, saepe in crustam irregulärem, praecipue aere sicco
furfuraoeam dense aggregato; trichomatibus laxe in tric atis, articulis
oblongo-rotundatis, initio remotis, deinde approximatis, densioribus ;
vaginis plus minus crassis, saepe crassissimis et saepius distincte lamellosis,
(ratione aetatis et partim loci natalis) achrois, luteolis, fusoescentibus
vel aureo - fusois. v. v.
Diam. trioh. ‘/soo - ‘/36o'" = 0 ,0 0 0 1 1 -0 ,0 0 0 2 5 " , vag, ' ¡ w i -
1/55'" = 0,00033 — 0,0017", oellul. perdur. ‘/soo'"— ‘/325"' = 0,00017"
—0,00027".
Hah. in muscis, rupibus, ericetis humidis per totam Europam,
saepe in oonsortio Chrooooooi turgidi.
N. granulare (Hormosiphon granulaiis Ktz. Speo. p. 301. X. 4.
Tabul, I. T. 94. sub Anabaena). X. subglobosum, magnitudine seminis
sinapeos vel pisi et u ltra , oliváceo- vel aerugineo - fuscum, nigrescens;
trichomatibus pallide aerugineis, plus minus flexuoso-curvatis, distincte
vaginatis; articulis globosis, subtilissime granulatis, arcte vel laxius
connexis; vaginis sat amplis, luteolis, his illisve diffluentibus. v. v.
Diam. ‘/800- ‘/60o'" = 0 ,0 0 0 1 1 -0 ,0 0 0 1 4 " , cell. perd, ' ¡ » f “ =
0,00026".
Hab. in terra nuda l im o s o - sabulosa, in campis humosis passim.
N macrosporum Menegh. (Xost. p. 116. X. 8 . T. XIV. F. 2. X.
crassisporum Menegh. Consp. Alg. Eugan. p. 7. Hormosiphon macrosporus
Ktz. Spec, et Tabul. DiplocolonHeppii Hantzsoh inEabenh. Alg. X. 1339 I).
X. thallo minimo, solido, polymorpho (globoso, oblongo vel oylindrico), aerugineo
viridi vel oliváceo-fuscescente, peridermate pellucido^ oincto;
trichomatibus flexuoso-curvatis, laxe intricatis, saepius spiraliter convolutis;
artiouHs sphaeriois vel suboompresso-sphaericis, aerugineis vel