Chorizanthe biloba var. immemora

Reveal & Hardham

Phytologia 66: 138. 1989.

Common names: Hernandez’s spineflower
Endemic
Treatment appears in FNA Volume 5. Treatment on page 458.

Outer tepals emarginate or subcordate apically. 2n = 34, 36, 38, 40, 42, 44, 46.


Phenology: Flowering May–Sep.
Habitat: Sandy to gravelly soils, mixed grassland communities, pine-oak woodlands
Elevation: 600-800 m

Discussion

Variety immemora is found on the eastern slope of the Diablo Range in southern San Benito County and in adjacent Monterey County. Hernandez spineflower is restricted to five small populations of a few individuals each. Plants of this taxon were variously identified as C. palmeri, C. biloba, or C. obovata prior to 1989. C. B. Hardham (1989) believed that the variety may be a product of past hybridization, given the variation in chromosome number. She also found meiotic chromosomes of three size classes, numerous nucleoli, and atypical pollen grains.

Selected References

None.

Lower Taxa

None.

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46 +, 44 +, 42 +, 40 +, 38 +, 36 +  and 34 +
globose-lenticular +
yellow +  and golden +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
James L. Reveal +
Reveal & Hardham +
alternating +
straight +
uncinate +
unequal +
2 cm20 mm <br />0.02 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
alternate +  and rosulate +
stipelike +
awn-tipped +  and simple +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
oblanceolate +
0.4cm;1cm +
deciduous +
distinct +
0.2 cm2 mm <br />0.002 m <br /> (2 cm20 mm <br />0.02 m <br />) +
glandular +, woolly-floccose +, tomentose +, strigose +, villous +, hirsute +  and pubescent +
acerose +, lanceolate +  and elliptic +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
disarticulating +, dichotomous +, branched +  and open +
erect +  and spreading +
just below the soil surface or and above the soil surface +  and spreading +
Hernandez’s spineflower +
600-800 m +
curved +  and straight +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
white +  and yellow +
white +  and pink or rose maroon or purple or yellow +
decumbent to erect +  and prostrate +
unwinged +  and winged +
black +, red +, brown +  and yellowish +
exserted +  and included +
pubescent +  and glabrous +
spheroidal +, 4-gonous +, lenticular +, biconvex +, discoid +, 3-gonous +  and 2-gonous +
Sandy to gravelly soils, mixed grassland communities, pine-oak woodlands +
uniparous +, capitate +  and cymose +
cymelike +, paniclelike +, racemelike +  and spikelike +
connate +  and free +
reddish +  and grayish +
ventricose +  and urceolate +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
nonmembranous +
in whorls +, opposite +, alternate +  and rosulate +
deciduous +  and persistent +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
cylindric +  and campanulate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering May–Sep. +
homostylous +  and 3-carpellate +
, +  and solid +
slender;stout +
not disarticulating +
decumbent to erect +  and prostrate +
prostrate +  and erect +
penicillate +, fimbriate +  and capitate +
deciduous +  and persistent +
? (?) +  and ? (?) +
coriaceous +  and membranous +
consisting of a series +  and tubular +
distinct +
erect;spreading +
Chorizanthe palmeri var. biloba +
chambered +, , +  and solid +
Slender (?) +  and Stout (?) +
Chorizanthe biloba var. immemora +
Chorizanthe biloba +
variety +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
dark purple +, maroon +  and red +
cylindric +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
coriaceous +
shallow +
erect +  and spreading +
unequal +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
3 +, 2 +  and 1 +
erect +  and spreading +