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 pistillate flowers and fruits
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. Pistillate flowers with more than 35 carpels.................................................................................................................. C. denticulata
4. Pistillate flowers with up to 35 carpels...............................................................................................................................................5
5. Achenes fusiform; leaflet blades ovate, margin entire, apex long-acuminate................................................................. C. brasiliana
5. Achenes elliptic or ovate; leaflet blades ovate or elliptic, margin entire or toothed, apex straight or acuminate..............................6
6. Inflorescences with 6–18 flowers; leaflet blade margin toothed......................................................................................... C. serrana
6. Inflorescences with 25–210 flowers; leaflet blade margin entire or toothed in young leaves ...........................................................7
7. Mature leaves pinnate with 5 leaflets; leaflet blade margin entire; indumentum white...................................................... C. integra
7. Mature leaves bipinnate with more than 5 leaflets; leaflet blade margin entire or toothed in young leaves; 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 page 157, DOI: 10.11646/phytotaxa.660.2.5, http://zenodo.org/record/13218096