INVESTIGADORES
VEGETTI Abelardo Carlos
artículos
Título:
An Analysis of the Inflorescences in species of Luziola (Oryzeae - Poaceae)
Autor/es:
VEGETTI, ABELARDO; WEBER MARCELA,
Revista:
Beiträge Zur Biologie Der Pflanzen
Editorial:
DUNCKER & HUMBLOT
Referencias:
Lugar: Berlín; Año: 2001 vol. 72 p. 161 - 179
ISSN:
0005-8041
Resumen:
The inflorescences of Luziola peruviana, L. bahiensis, L. pittieri, L. doelliana
and L. gracillima are analyzed typologically as a contribution to the knowledge of
inflorescences within the tribe Oryzeae.
The inflorescence of Luziola is polytelic. h the paracladial zone, short and long
paraclades can be distinguished. In the subzone of long paraclades two regions are
present: one with and one without trophotagma.
The main florescence, the subzone of short paraclades, and the region of long
paraclades without trophotagma form the "flowering unit". Additional long paraclades
with trophotagma originate below these units. Each long paraclade with
trophotagma repeats the structure observed on the main axis, and ends in a
"flowering unit". Several features distinguish long paraclades with trophotagma
from the flowering unit of the main floral axis: 1) they are generated by axillary
buds developing from the axils of frondose leaves, 2) they bear a developed prophyll
at the base, and 3) all spikelets have pistillate flowers.L. pittieri, L. doelliana
and L. gracillima are analyzed typologically as a contribution to the knowledge of
inflorescences within the tribe Oryzeae.
The inflorescence of Luziola is polytelic. h the paracladial zone, short and long
paraclades can be distinguished. In the subzone of long paraclades two regions are
present: one with and one without trophotagma.
The main florescence, the subzone of short paraclades, and the region of long
paraclades without trophotagma form the "flowering unit". Additional long paraclades
with trophotagma originate below these units. Each long paraclade with
trophotagma repeats the structure observed on the main axis, and ends in a
"flowering unit". Several features distinguish long paraclades with trophotagma
from the flowering unit of the main floral axis: 1) they are generated by axillary
buds developing from the axils of frondose leaves, 2) they bear a developed prophyll
at the base, and 3) all spikelets have pistillate flowers.L. gracillima are analyzed typologically as a contribution to the knowledge of
inflorescences within the tribe Oryzeae.
The inflorescence of Luziola is polytelic. h the paracladial zone, short and long
paraclades can be distinguished. In the subzone of long paraclades two regions are
present: one with and one without trophotagma.
The main florescence, the subzone of short paraclades, and the region of long
paraclades without trophotagma form the "flowering unit". Additional long paraclades
with trophotagma originate below these units. Each long paraclade with
trophotagma repeats the structure observed on the main axis, and ends in a
"flowering unit". Several features distinguish long paraclades with trophotagma
from the flowering unit of the main floral axis: 1) they are generated by axillary
buds developing from the axils of frondose leaves, 2) they bear a developed prophyll
at the base, and 3) all spikelets have pistillate flowers.h the paracladial zone, short and long
paraclades can be distinguished. In the subzone of long paraclades two regions are
present: one with and one without trophotagma.
The main florescence, the subzone of short paraclades, and the region of long
paraclades without trophotagma form the "flowering unit". Additional long paraclades
with trophotagma originate below these units. Each long paraclade with
trophotagma repeats the structure observed on the main axis, and ends in a
"flowering unit". Several features distinguish long paraclades with trophotagma
from the flowering unit of the main floral axis: 1) they are generated by axillary
buds developing from the axils of frondose leaves, 2) they bear a developed prophyll
at the base, and 3) all spikelets have pistillate flowers.3) all spikelets have pistillate flowers.