- Project Runeberg -  Svensk botanisk tidskrift / Band 13. 1919 /
30

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30
Catillaria eximia n. sp.

Crusta tenuis, alba v. albida, e verrucis formata parvis, raro 0,5
mm attingentibus, semiglobosis v. depressis, dispersis v. confluen-
libus, hypothallo pallido, neque KOH, neque hypochlor. calc. rea-
gens, hyphis medullaribus J non coerulescentibus. Gonidia sub-
globosa, 6—9 w crassa; stratum corticale satis indistinctum.

Apothecia numerosa, adnata, nigricantia v. atra, opaca, 0,5—1
mm lata, disco plano, margine crassiusculo, repando v. auriculato
el nonnumquam aliquantulum crenulato, persistente. Thecium
55—65 wu altum, superne (sicut pars marginalis excipuli extus)
olivaceo-nigricans, hypothecio, parte centrali et parte marginali exci-
puli intus incoloribus, J persistenter coerulescens, KOH non mu-
tatum. Asci inflato-clavati, usque 14 w crassi. Sporae 8:nae, uni-
septatae, subcylindricae v. oblongae, 9—12 (— 14) u longae, 2,5—3,5
(— 4) w crassae, halone nullo. Paraphyses arcte conglutinatae,
simplices, 1—1,5 jw crassae, superne nonnihil clavato-incrassatae,
(KOH et HNO, tractatae) satis crebre septatae.

Jämtland: Undersåker, Hälland. In saxo schistoso subaprico
(legi anno 1910).

Species in stirpe C. bahusiensis (Blomb.) bene distincta, C. timidulae
Th. Fr., ut videtur, proxima, abs qua crusta recedit melius evoluta,

apotheciis majoribus, sporis minoribus et pro rata angustioribus etc.
Habitu Lecideae, e stirpe L. lithophilae Ach., persimilis est.

Rhizocarpon constrictum n. sp.

Crusta tenuis, cinerea, cinereo-fuscescens v. cinereo-rufescens,
rimoso-areolata, rarius disperse areolata, areolis parvis, raro 0,5
mm excedentibus, subplanis v. leviter convexis, neque KOH, ne-
que hypochlor. calc. reagens, hypothallo atro. Hyphae medullares
J coerulescentes, 4—6 u crassae, valde pachydermaticae, crebre sep-
tatae, saepe nonnihil moniliformes; gonidia subglobosa, 9—12 u
crassa; stratum corticale tenue, circiter 20 u crassum, ex hyphis
formatum verticalibus, crebre septatis, pseudoparenchymaticum.

Apothecia adpressa, thallum subaequantia, 0,5—1 mm lata, atra,
opaca, disco plano v. demum convexulo, margine tenuiusculo, haud
multum prominente, demum subexcluso. Thecium circiter 100 u
altum, superne smaragdulo- v. olivaceo-nigricans, hypothecio fusco-
nigricante, J pulchre coerulescens, KOH non reagens (tantum su-
perne dilutius smaragdulo-coerulescens). Sporae 8:nae, ovoideae,

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