Orthophytum subg. Capixabanthus, Leme, S. Heller & Zizka, 2017
publication ID |
https://doi.org/ 10.11646/phytotaxa.430.3.2 |
persistent identifier |
https://treatment.plazi.org/id/039687DD-6654-301A-D5D9-F1F7B0C9F797 |
treatment provided by |
Felipe |
scientific name |
Orthophytum subg. Capixabanthus |
status |
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Key to the species of Orthophytum subg. Capixabanthus
1 Inflorescence sessile or sometimes inconspicuously pedunculate ..................................................................................................... 2
1a Inflorescence distinctly pendunculate ................................................................................................................................................ 5
2 Plants stemless; petals acute............................................................................................................................................ O. arcanum View in CoL
2a Plants caulescent; petals obtuse-cucullate .......................................................................................................................................... 3
3 Inflorescence simple........................................................................................................................................................... O. vagans View in CoL
3a Inflorescence compound..................................................................................................................................................................... 4
4 Leaf blades 30–55 cm long, glabrous and lustrous toward the apex adaxially, spines 2–3.5 mm long, 5–10 mm apart; sepals 16–18 mm long ................................................................................................................................................................... O. pseudovagans View in CoL
4a Leaf blades 10–25 cm long, densely white lepidote throughout, non-lustrous, spines 0.5–1 mm long, 3–5 mm apart; sepals 13–14 cm long ............................................................................................................................................................................... O. zanonii View in CoL
5 Leaf blades 15–25 cm long; flower fascicles laxly arranged, the basal ones 2–3-flowered; petals blades spreading at anthesis, broadly elliptic to suborbicular........................................................................................................................................... O. duartei View in CoL
5a Leaf blades 50–100 cm long; flower fascicles subdensely to densely arranged at least at the apex of the inflorescence, the basal ones 5–14-flowered; petals erect except for the suberect apex at anthesis, subspathulate-lanceolate ............................................... 6
6 Plants 60–70 cm tall when in bloom; leaves castaneous-red; peduncle 25–40 cm long; petals acute...................... O. rubiginosum View in CoL
6a Plants 20–50 cm tall when in bloom; leaves green; peduncle 15–20 cm long; petals obtuse and slightly cucullate......................... 7
7 Leaves over 80 cm long; inflorescence with flower fascicles sparsely to subdensely arranged toward the base and densely arranged at the apex but not forming a prominent head of flower fascicles; sepals 16–17 mm long ............................................ O. foliosum View in CoL
7a Leaves 50–65 cm long; inflorescence with a subglobose to globose prominent head of densely congested flower fascicles at the apex except for few laxly arranged flower fascicles at the base; sepals ca. 13 mm long ............................................ O. compactum View in CoL
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