The New Encyclopædia Britannica: In 32 Volumes. A-ak - Bayes, Volume 1Philip W. Goetz, Dale H. Hoiberg, Robert MacHenry Encyclopædia Britannica, 1992 - 32 pages |
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Page 254
... sporangium generally terminates an elongate stalk , or seta , when the sporangium is ready to shed its spores . The sporangium rupture usually involves specialized structures that enhance expulsion of the spores away from the parent ...
... sporangium generally terminates an elongate stalk , or seta , when the sporangium is ready to shed its spores . The sporangium rupture usually involves specialized structures that enhance expulsion of the spores away from the parent ...
Page 255
... sporangium . They are generally hemispheric , and the surface is often elaborately ornamented . The protonema , which grows directly from the germinat- ing spore , is in most mosses an extensive , branched sys- tem of multicellular ...
... sporangium . They are generally hemispheric , and the surface is often elaborately ornamented . The protonema , which grows directly from the germinat- ing spore , is in most mosses an extensive , branched sys- tem of multicellular ...
Page 257
... sporangium horn - shaped , usually with stomata in jacket ; elaters often multicellular and often lacking helical thickenings ; columella of sterile tissue ex- tending the length of the sporangium , with the spore - bearing tissue ...
... sporangium horn - shaped , usually with stomata in jacket ; elaters often multicellular and often lacking helical thickenings ; columella of sterile tissue ex- tending the length of the sporangium , with the spore - bearing tissue ...
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19th century adult America anemia antibodies antigens areas Asia behaviour bill birds blood group bodhisattva body Bolivia bone Brazil Brazilian breeding broadcasting bryophytes Buddha Buddhist building called Caprimulgiformes centimetres central centre China clotting colonial colour countries cuckoos cultural disease display early eggs electrons Eocene falconiforms Family feathers feeding feet female forest fossil frequency genera genus gruiform hemoglobin important incubation Indian insects islands known legs light Mahāyāna major male marrow metres monks nest nightjars normal North owls pair Pāli parrots passerines pattern pelecaniforms penguins percent perch period Piciformes pigeons plasma platelets plumage political population produced programs protein radio red cells region river São Paulo scanning sexes short signal South species sporangium structure Suborder surface tail television Theravada tion tissue toes tradition trees tropical tube usually Vajrayāna varies wings woodpeckers World young