Tracyina rostrata

S. F. Blake

Madroño 4: 75, fig. 1. 1937.

IllustratedEndemic
Treatment appears in FNA Volume 20. Treatment on page 50.

Leaf-blades 10–25 (–35+) × 1–2 (–5+) mm. Peduncles ± pilosulous near heads. Involucres 5–7+ mm. Ray corollas: tubes 2.5–3+ mm, laminae narrowly elliptic, 1–1.5+ mm. Disc corollas: tubes 1–1.5 mm, throats 2–2.5 mm, lobes 0.1–0.3 mm. Cypselae 5–6 mm; pappi 1–4+ mm. 2n = 18.


Phenology: Flowering May–Jun.
Habitat: Grassy slopes
Elevation: 100–300+ m

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Tracyina rostrata"
hirsutulous +  and glabrous +
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
S. F. Blake +
decurrent +
compound +  and simple +
rugulose +  and muricate +
not 2-lipped +  and actinomorphic +
pale-yellow +  and purplish +
beaked +, 2-ribbed +  and 5-ribbed +
hirsutulous +, glabrate +  and glabrous +
fertile +  and bisexual +
fertile +  and bisexual +
100–300+ m +
hirsutulous +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Grassy slopes +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
less cylindric;turbinate or obconic +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
lance-deltate +
2-carpellate +
persistent +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering May–Jun. +
linear +  and subulate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Illustrated +  and Endemic +
branched +  and simple +
hirsutulous +  and glabrous +
appendaged +  and truncate +
papillate +  and smooth +
Compositae +
Tracyina rostrata +
Tracyina +
species +
cylindric +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
tree +, shrub +  and subshrub +