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Taxonomic identification in the tribe Cynoglosseae (Boraginaceae) using palynological characteristics
- Source :
- Flora. 249:97-110
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- The palynomorphological characteristics of 31 species belonging to 8 genera (Paracaryum, Mattiastrum, Microparacaryum, Rindera, Cynoglossum, Solenanthus, Trachelanthus and Lindelofia) of the tribe Cynoglosseae (Boraginaceae) were studied in detail. Palynological observation of the tribe revealed that shape of pollen grains was frequently prolate, subprolate, prolate spheroidal and preprolate. The similarity in some features of the pollen shape and apertural type has been found in several genera such as Cynoglossum, Trachelanthus and Lindelofia. The main ornamentation type was psilate-punctate, psilate-perforate, microgranulate, punctate-microreticulate, scabrate, reticulate, microechinate, punctate-perforate. The species were classified into two pollen types: (i) Rindera tetraspis type and (ii) Cynoglossum officinale type on the basis of aperture characters and surface ornamentation. In present research both genera and species were delimited in the tribe Cynoglosseae. Main objective of the present research is to study different palynological characters for the identification and species delimitation in the tribe Cynoglosseae (Borginaceae). The present findings of the palynological characters are of great interest for the taxonomists for the accurate identification of genera and species in tribe Cynoglosseae. The micro-morphological characteristics of pollen show many novel features for the correct taxonomic identification and species delimitations and this study provide many valuable information to plant taxonomists for further studies.
- Subjects :
- 0106 biological sciences
Palynology
Cynoglossum
Ecology
biology
030206 dentistry
Plant Science
Boraginaceae
biology.organism_classification
medicine.disease_cause
010603 evolutionary biology
01 natural sciences
Cynoglossum officinale
Solenanthus
03 medical and health sciences
0302 clinical medicine
Reticulate
Pollen
Botany
medicine
Taxonomy (biology)
Ecology, Evolution, Behavior and Systematics
Subjects
Details
- ISSN :
- 03672530
- Volume :
- 249
- Database :
- OpenAIRE
- Journal :
- Flora
- Accession number :
- edsair.doi...........b21bd0cda059066fd4797f75e3458c35