Clematis Linnaeus 1753
Creators: name: Piovesani, Willian Souza
name: Ferreira, Priscila Porto Alegre
name: Seger, Guilherme Dubal Dos Santos
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Ranunculales
Ranunculaceae
Clematis

description: Key to the species of Clematis in the Atlantic Forest Biome based on staminate flowers
1. Mature leaves trifoliolate.............................................................................................................................................. C. bonariensis
1. Mature leaves pinnate, bipinnate, or tripinnate ..................................................................................................................................2
2. Mature leaves tripinnate; endemic to Itatiaia, Serra da Mantiqueira............................................................................ C. ulbrichiana
2. Mature leaves pinnate or bipinnate.....................................................................................................................................................3
3. Flowers bisexual (perfect); leaflet blades linear-lanceolate (rare ovate), margin entire; highland grasslands............... C. campestris
3. Flowers unisexual, with staminodes or pistillodes (sometimes staminate inflorescences with perfect flowers); leaflet blades of other shapes; forests ...........................................................................................................................................................................4
4. Inflorescences with up to 20 flowers..................................................................................................................................................5
4. Inflorescences with more than 20 flowers..........................................................................................................................................6
5. Staminate partial inflorescences in normal cymes ........................................................................................................ C. denticulata
5. Staminate partial inflorescences in compressed cymes (false whorls)................................................................................ C. serrana
6. Staminate partial inflorescences in normal cymes; mature leaves pinnate with 5 leaflets.................................................. C. integra
6. Staminate partial inflorescences in compressed cymes (false whorls); mature leaves bipinnate with more than 5 leaflets..............7
7. Leaflet blades ovate with apex long-acuminate; indumentum white .............................................................................. C. brasiliana
7. Leaflet blades elliptic with apex acuminate; indumentum yellow ..................................................................................... C. discolor
description: Published as part of Piovesani, Willian Souza, Ferreira, Priscila Porto Alegre & Seger, Guilherme Dubal Dos Santos, 2024, Clematis serrana (Ranunculaceae), a new endemic species to the Atlantic Forest highlands in Southern Brazil, pp. 149-160 in Phytotaxa 660 (2) on pages 156-157, DOI: 10.11646/phytotaxa.660.2.5, http://zenodo.org/record/13218096