Polygala (sect. Timutua) (ser. Trichospermae) Chodat
Creators: name: Pastore, José Floriano Barêa
name: Antar, Guilherme Medeiros
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Polygalaceae
Polygala

description: Key to Brazilian species of Polygala sect. Timutua ser. Trichospermae Chodat
1. Aphyllous plants or with scale like leaves (eventually leaves at first nodes are ovate or elliptic).... 2
– Plant with linear to wide ovate leaves ............................................................................................... 5
2. Seeds with two caruncular appendages ............................................................................................. 3
– Seeds without caruncular appendages ............................................................................................... 4
3. Seeds without a ring of trichomes at the base of the seed, tricomes uncinate...... P. apparicioi Brade
– Seeds with a ring of trichomes at the base of the seed, trichomes straight.......................................... ................................................................................... P. tocantinensis J.F.B.Pastore & Antar sp. nov.
4. Plant brownish, freshy, corolla caducous in frutification.......... P. saprophytica Chodat ex Grondona
– Plant greenish, not freshy, corolla persistent in frutification ..................................... P. subtilis Kunth
5. Seeds with two caruncular appendages ............................................................................................. 6
– Seeds without caruncular appendages ............................................................................................... 8
6. With a ring of trichomes at the base of the seed................................................ P. trichosperma Jacq.
– Seeds without a ring of trichomes at base ......................................................................................... 7
7. Seeds with caruncular appendages ca ½ of the seeds, with uncinate trichomes ................................ ................................................................................................................ P. juncea A.St. -Hil. & Moq.
– Seeds with appendiges reaching not more than ¼ of the length, trichomes straight........................... ......................................................................................... P. bringellii J.F.B.Pastore & Antar sp. nov.
8. Keel much longer (at least 80% longer) than the internal sepals (wings); style ca 5 times as long as the ovary; crest of keel wider in the apex (petal-like) .......................................... P. adenophora DC.
– Keel shorter or longer (not more than 20%) than the internal sepal (wings); style shorter or the same length of the ovary, crest of the keel not wider in the apex (not petal-like) ...................................... 9
9. Seed conical..................................................................................................................................... 10
– Seed subglobose to sub-oblong ........................................................................................................11
10. Pedicel 1.8–3.5 mm long; corolla caducous on mature fruit ............................. P. longicaulis Kunth
– Pedicel 0.5–0.8 mm long, corolla persistent on mature fruit................... P. pseudovariabilis Chodat
11. Seed subglobose, glabrous or with uncinate trichomes............. P. chapadensis Chodat ex Grondona
– Seeds suboblong, with straight or curved trichomes, never uncinate... P. herbiola A.St. -Hil. & Moq.
description: Published as part of Pastore, José Floriano Barêa & Antar, Guilherme Medeiros, 2021, Two new endangered species of Polygala series Trichospermae (Polygalaceae), endemic to the Cerrado domain, Tocantins State, Brazil, pp. 133-148 in European Journal of Taxonomy 762 on page 145, DOI: 10.5852/ejt.2021.762.1459, http://zenodo.org/record/5211761