Orthophytum, Beer, 1854
publication ID |
https://doi.org/ 10.11646/phytotaxa.13.1.1 |
DOI |
https://doi.org/10.5281/zenodo.4778690 |
persistent identifier |
https://treatment.plazi.org/id/0389F944-FFC1-FF8A-FF4C-FE863CF3FAD4 |
treatment provided by |
Felipe |
scientific name |
Orthophytum |
status |
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Key to the species of Orthophytum View in CoL with sessile inflorescence
1 Plants with short stem, inconspicuous, 1–4.2 cm long; petals white, obtuse to subacute not cucullate...................... 2
- Plants with long stem, ca 10 cm long; petals green with white margins, obtuse-cucullate........................................ 11
2 Compound inflorescences (rarely simple in O. ulei View in CoL ) .................................................................................................... 3
- Simple inflorescences ................................................................................................................................................... 4
3 Floral bracts and sepals pink to red ............................................................................................................................. 7
- Floral bracts and sepals green ..................................................................................................................................... 10
4 Sepals without glandular trichomes; prickles of leaf blade (1.7–) 2–3.5 mm long ................................ O. hatschbachii View in CoL
- Sepals with glandular trichomes; prickles of leaf blade 0.3–1.5 mm long................................................................... 5
5 Leaf blades densely lepidote; sepals narrowly triangular ............................................................................... O. humile View in CoL
- Leaf blades sparsely lepidote; sepals triangular-lanceolate .......................................................................................... 6
6 Leaf blades 8–23 × 0.4–0.7 cm; petals c. 2.5 cm long ............................................................................... O. navioides View in CoL
- Leaf blades 2.5–6.7 × 0.3–0.4 cm; petals c. 1.9 cm long ........................................................................ O. mucugense View in CoL
7 Leaf blades adaxially lepidote, not lucid ......................................................................................................................8
- Leaf blades adaxially sparsely lepidote, lucid .............................................................................................................. 9
8 Leaf blades adaxially glabrous at base; petals 1.8–2.5 cm long, apices subacute ................................. O. burle-marxii View in CoL
- Leaf blades adaxially densely lepidote at base; petals 1.3–1.7 cm long, apices obtuse ...................................... O. ulei View in CoL
9 Leaf blades coriaceous, 0.5-1 cm wide; prickles 1.5–3 mm long; floral bracts c. 1.8 × 1 cm; anthers 3.2–3.5 mm long .................................................................................................................................................................... O. amoenum View in CoL
- Leaf blades subcoriaceous, 0.2–0.4 cm wide; prickles 0.3-0.4 mm long; floral bracts 0.9–1.2 × 0.6–0.7 cm; anthers 2.3–2.5 mm long ..................................................................................................................................... O. ophiuroides View in CoL
10 Leaf blades margins serrate, adaxial surfaces with white-lanate ring at base; prickles 0.5–3.5 cm long; sepals and petals without glandular trichomes .......................................................................................................... O. albopictum View in CoL
- Leaf blades margins serrulate, adaxial surfaces without white-lanate ring at base; prickles 0.3–0.5 mm long; sepals and petals with glandular trichomes ......................................................................................................... O. heleniceae View in CoL
11 Simple inflorescences ..................................................................................................................................... O. vagans View in CoL
- Compound inflorescences........................................................................................................................................... 12
12 Leaf blades densely lepidote on both surfaces; prickles 0.6-1 mm long ....................................................... O. zanonii View in CoL
- Leaf blades adaxially glabrous toward the; prickles 2-3.5 mm long .................................................. O. pseudovagans View in CoL
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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