Placodiiim. 123 



(Tuck., Obs. Am. Lich. 1862 p. 402), quocl item disco clistinctius 



rubro et margiiie thallode minute crenulato ab eo differt. 



Thallus KHO non reagens, hypothallo caeruleo-nigricante passim 



conspicuo, in parte interiore ex hyphis formatus parenchymatice 



septatis, membrana tenui instructis, extus hyphis tenuiter obductus 



irregulariter contextis, partim congkitinatis, celluhs vulgo elongatis. 



Apothecia 2 0,8 miUim. lata, disco plano aut interdum convexo, 



margine thallode integro aut flexuoso. Excipidicm extus KHO le- 



viter violascens, hyphis parenchymatice septatis, constrictis, in 



parte tenui exteriore congkitinatis. Hi/meniumO^o^o 0,0 8 millim. 



crassum, iodo persistenter caerulescens. Parapliyses 0,ooi5 mil- 



hm. crassae, apice clavatae (0,oo3 0,oo2 millim.), gelatinam sat 



firmam, haud abundantem percurrentes, praesertim apicem versus 



ramosae, ahae simphces, non aut apice parce constricte articu- 



latae. Asci sicut in var. praecedente. Sporae ellipsoideae, apici- 



bus obtusis, long. 0,oi5 O.ois, crass. 0,oo9 0,oo8 milhn]. 



7. Pl. subcerinnm (Nvl.) Wainio. Lecamra erytJiroIeuca var. 

 si'Jjcerina XyL, n. 1869 p. 119, Krempelb., PL 1876 p. 173 (haud 

 L. suhcerina NvL, FL 1876 p. 282). Callopisma australe MiilL Arg., 

 Lich. Beitr. (FL 1881) p. 249. 



Thalliis crustaceus, tenuis, effusus, subcontinuus, rugulosus 

 aut verruculoso-rugulosus, cinereo-albicans, esorediatus. Apotlie- 

 cia mediocria, 2 1 milhm. lata, demum. subpeltata, thalio ad- 

 pressa, disco plano, sordide cerino-aurantiaco aut cerino-fulve- 

 scente [pulchre aurantiaco in var. aurantiaca MiilL Arg., L c.], 

 margine thallode persistente, crassiusculo aut sat tenui, thallo 

 concolore aut albido-flavicante, integro aut flexuoso [aut minute 

 crenulata in var. crenulata MuIL Arg., L. B. n. 332]. Sporae 

 8:nae, oblongae aut ellipsoideae, 3-loculares, long. O,0 2 5 0,oi9 

 (raro 0,oi5), crass. O,oii O.oio [,, 0,oi3"] millim. 



Ad corticem arborum prope Sepitiba in civ. Rio de Janeiro, 

 n. 462, 505. Habitu PI. gilvo (Hoffm.) subsimile est. Thalliis 

 KHO non reagens, hypothallo inchstincto. Apothecia margine 

 thallode primum leviter elevato, demum discum aequante, mar- 

 gine proprio spurio in nonnullis apotheciis conspicuo, tenuissimo, 

 textura thalamio consimih. Excipidim thallodes gonidia conti- 

 nens. Hypothecium fere aibidum. Hymeniwn circ. 0,i6 0,i2o 

 millirn. crassum, jodo persistenter caerulescens. Epithecitm ful- 



