Prionosciadium nelsonii explained

Prionosciadium nelsonii is a plant species known from the Mexican states of Chiapas and Morelos.^{[1] [2]} It is a biennial herb with a large taproot. Leaves are compound with narrowly lanecolate leaflets, some of them with narrow, tapering lobes. The inflorescence is a compound umbel at the top of the stem.^{[3] [4] [5]}

External links

• photo of herbarium specimen at Missouri Botanical Garden, collected in Morelos, syntype of Prionosciadium nelsonii, sheet 1 of 2 w stem + flowers
• photo of herbarium specimen at Missouri Botanical Garden, collected in Morelos, syntype of Prionosciadium nelsonii, sheet 2 of 2 w fruits + basal leaf

Notes and References

1. Coulter, John Merle, & Rose, Joseph Nelson. Proceedings of the Washington Academy of Sciences 1: 149–150. 1900.
2. Breedlove, D.E. 1986. Flora de Chiapas. Listados Florísticos de México 4: i–v, 1–246.
3. Wolff, Karl Friedrich August Hermann. Repertorium Specierum Novarum Regni Vegetabilis 9(222/226): 421. 1911.
4. Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera. 2009. Cucurbitaceae a Polemoniaceae. 4(1): i–xvi, 1–855. In G. Davidse, M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera (eds.) Flora Mesoamericana. Universidad Nacional Autónoma de México, México D.F.
5. http://fm1.fieldmuseum.org/vrrc/index.php?language=br&page=view&id=72495&PHPSESSID=02065e962644041721f3d1ae159323e3&PHPSESSID=02065e962644041721f3d1ae159323e3 Field Museum, Amostras de Herbário de Neotrópica