@article{fdi:010083854,
  title = {{T}axonomic description and pollination ecology of {C}yrtorchis okuensis ({O}rchidaceae, {A}ngraecinae), a new species endemic to the {C}ameroon {V}olcanic {L}ine},
  author = {{A}zandi, {L}. {N}. and {S}t{\'e}vart, {T}. and {S}onk{\'e}, {B}. and {S}imo-{D}roissart, {M}. and {D}'{H}aij{\`e}re, {T}. and {D}roissart, {V}incent},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ackground and aims - {A} recent taxonomic and molecular study of the genus {C}yrtorchis revealed three new species. {H}ere, we describe one of these new species, endemic to the {C}ameroon {V}olcanic {L}ine ({CVL}), and compare it to its closest relatives. {I}ts conservation status is provided along with detailed information on its ecology and reproductive biology. {M}aterial and methods - {A} detailed examination of 21 herbarium specimens was performed using standard practices of herbarium taxonomy. {T}he conservation status of the new species was assessed using the {IUCN} {R}ed {L}ist {C}ategories and {C}riteria. {F}urthermore, we investigated the reproductive biology of the new species in an easily accessible subpopulation in {C}ameroon and tested the hypothesis of hawkmoth pollination in the genus {C}yrtorchis. {K}ey results - {T}he newly discovered species, here named {C}. okuensis, is restricted to the montane forest (1600 to 2500 m elevation) of the {CVL} and is currently assessed as {N}ear {T}hreatened ({NT}). {A}mong angraecoid orchids in which hawkmoth pollination is recorded (similar to 16 species), {C}. okuensis has the shortest nectar spur (19-40 mm). {I}n situ observations revealed hawkmoths with short proboscis of the genus {H}ippotion ({H}. celerio, {H}. eson, and {H}. osiris) as the main pollinators. {T}he rate of pollination and fruiting under natural conditions was low and among the 448 surveyed flowers only 38.8% (174/448 flowers) had their pollinia removed, 19% produced fruits (87/448 flowers), and 16% (70/448 flowers) set mature fruits. {C}onclusion - {C}yrtorchis okuensis is clearly differentiated from {C}. submontana by its longer and wider floral bracts, longer anther caps, and wider triangular dorsal sepal.},
  keywords = {{A}ngraecoid orchids ; epiphyte ; hawkmoth ; {IUCN} {R}ed {L}ist {C}ategories and ; {C}riteria ; pollination ; systematics ; {CAMEROUN}},
  booktitle = {},
  journal = {{P}lant {E}cology and {E}volution},
  volume = {154},
  numero = {3},
  pages = {483--496},
  ISSN = {2032-3913},
  year = {2021},
  DOI = {10.5091/plecevo.2021.1823},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083854},
}