TY - JOUR
T1 - Manfreda occidentalis (Agavoideae, asparagaceae) a new species from western Mexico
AU - Castro-Castro, Arturo
AU - Munguía-Lino, Guadalupe
AU - Carrillo-Reyes, Pablo
AU - Rodriguez, Aarón
N1 - Publisher Copyright:
© 2017 Magnolia Press.
PY - 2017/9/12
Y1 - 2017/9/12
N2 - The genus Manfreda (Asparagaceae) contains 35 species. A species complex includes plants similar to M. gutttata, which are characterized by the protrusion of the ovary into the perigone tube. This feature was found in specimens recently collected in western Mexico. After a morphological analysis, we found that some of the plants differ from the other species in this complex. Hence, we describe a new species named M. occidentalis morphologically similar to M. planifolia but can be distinguished from it by the oblong-ovoid corm, channeled leaves, which are papillate on both sides, perigone 1.8–2.5 cm long, funnel-shaped, yellowish and light purple striate, perigone tube 0.3–0.7 × 0.2–0.4 cm, filaments adnate to the perigone and arising 0.3–0.7 cm above the ovary apex, anthers 0.9–1.1 cm long, and style 2.1–3.5 cm long, exceeding the perigone tube by 1.8–3 cm at anthesis. Manfreda occidentalis also resembles M. chamelensis; however, phenologic asynchrony is a notable difference between them as well as the shape of the leaves and the length and shape of perigone tube and lobes. A distribution map, photographs, and a key to identify species of Manfreda which grow in western Mexico accompany the description.
AB - The genus Manfreda (Asparagaceae) contains 35 species. A species complex includes plants similar to M. gutttata, which are characterized by the protrusion of the ovary into the perigone tube. This feature was found in specimens recently collected in western Mexico. After a morphological analysis, we found that some of the plants differ from the other species in this complex. Hence, we describe a new species named M. occidentalis morphologically similar to M. planifolia but can be distinguished from it by the oblong-ovoid corm, channeled leaves, which are papillate on both sides, perigone 1.8–2.5 cm long, funnel-shaped, yellowish and light purple striate, perigone tube 0.3–0.7 × 0.2–0.4 cm, filaments adnate to the perigone and arising 0.3–0.7 cm above the ovary apex, anthers 0.9–1.1 cm long, and style 2.1–3.5 cm long, exceeding the perigone tube by 1.8–3 cm at anthesis. Manfreda occidentalis also resembles M. chamelensis; however, phenologic asynchrony is a notable difference between them as well as the shape of the leaves and the length and shape of perigone tube and lobes. A distribution map, photographs, and a key to identify species of Manfreda which grow in western Mexico accompany the description.
KW - Agavaceae
KW - El Tuito
KW - Reproductive isolation
KW - Savannoid vegetation
KW - Sierra del Cuale
UR - http://www.scopus.com/inward/record.url?scp=85030108705&partnerID=8YFLogxK
U2 - 10.11646/phytotaxa.321.1.2
DO - 10.11646/phytotaxa.321.1.2
M3 - Artículo
SN - 1179-3155
VL - 321
SP - 60
EP - 70
JO - Phytotaxa
JF - Phytotaxa
IS - 1
ER -