Hesperomecon linearis

(Bentham) Greene

Pittonia 5: 146. 1903.

EndemicIllustrated
Basionym: Platystigma lineare Bentham Trans. Hort. Soc. London, ser. 2, 1: 407. 1834
Synonyms: Meconella linearis (Bentham) A. Nelson & J. F. Macbride Meconella linearis var. pulchellum (Greene) Jepson Platystemon linearis
Treatment appears in FNA Volume 3.

Plants 0.3-4 dm, sparsely pilose to densely hirsute. Leaves mostly basal, 0.5-8.5 cm; blade linear; margins entire. Inflorescences: peduncle 2.5-38 cm; bud globose to ovoid-cylindric. Flowers: petals white to cream colored, sometimes with yellow tips, sometimes tinged red in age, narrowly ovate to obovate, 0.3-2 × 0.2-1 cm, apex acute to obtuse; ovary ovoid-ellipsoid; stigmas deltoid, margins revolute. Capsules ovoid, to 1.5 cm. Seeds dark, shining, smooth. 2n = 14.


Phenology: Flowering early–late spring.
Habitat: Open, grassy areas in grasslands, sand dunes, oak and pine woodlands
Elevation: 0-1000 m

Discussion

Depauperate plants of this species may be confused with Meconella, but Hesperomecon can be distinguished by its linear, pilose leaves and ovoid capsules. Robust plants may be confused with Platystemon, but the strictly 3-carpellate, strongly syncarpous gynoecium and valvate capsules of Hesperomecon are always diagnostic.

Selected References

None.

Lower Taxa

None.
... more about "Hesperomecon linearis"
acute +  and obtuse +
Gary L. Hannan +
(Bentham) Greene +
Platystigma lineare +
palmate +  and subpalmate +
unlobed +
globose +  and ovoid-cylindric +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0-1000 m +
connivent +  and overlapping +
sessile +, pedicellate +  and symmetric +
transverse +, poricidal +, valvate +  and dehiscence +
Open, grassy areas in grasslands, sand dunes, oak and pine woodlands +
paniculate +  and racemose +
terminal +  and axillary +
0.5 cm5 mm <br />0.005 m <br /> (8.5 cm85 mm <br />0.085 m <br />) +
1-2-locular or +  and incompletely completely multilocular +
ovoid-ellipsoid +
2.5 cm25 mm <br />0.025 m <br /> (38 cm380 mm <br />0.38 m <br />) +
tinged red +, white +  and cream colored +
distinct +
0.3cm;2cm +
narrowly ovate +  and obovate +
2 times number of sepals +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering early–late spring. +
carunculate +  and arillate +
list +  and count +
obovate +
Endemic +  and Illustrated +
decumbent +, spreading +  and erect +
Meconella linearis +, Meconella linearis var. pulchellum +  and Platystemon linearis +
Hesperomecon linearis +
Hesperomecon +
species +
subscapose +  and short-caulescent +
sparsely pilose +  and densely hirsute +