Contributions to the Lichen Flora of Argentina: I. Some Lichens from the Province of Buenos Aires

1968 ◽  
Vol 71 (3) ◽  
pp. 285
Author(s):  
Hector S. Osorio
Keyword(s):  
Buenos Aires ◽  
Flora Of Argentina ◽  
Lichen Flora

Contribution to the Lichen Flora of Argentina. III. Additions

1969 ◽  
Vol 72 (3) ◽  
pp. 409
Author(s):  
Hector S. Osorio
Keyword(s):  
Flora Of Argentina ◽  
Lichen Flora

Open discussion

1982 ◽  
Vol 99 ◽  
pp. 605-613
Author(s):  
P. S. Conti
Keyword(s):  
Buenos Aires ◽  
Large Mass ◽  
List Type ◽  
Common Phenomenon ◽  
Open Discussion ◽  
The Stability ◽  
Ring Nebulae

Conti: One of the main conclusions of the Wolf-Rayet symposium in Buenos Aires was that Wolf-Rayet stars are evolutionary products of massive objects. Some questions:–Do hot helium-rich stars, that are not Wolf-Rayet stars, exist?–What about the stability of helium rich stars of large mass? We know a helium rich star of ∼40 MO. Has the stability something to do with the wind?–Ring nebulae and bubbles : this seems to be a much more common phenomenon than we thought of some years age.–What is the origin of the subtypes? This is important to find a possible matching of scenarios to subtypes.

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