nem laminae aequantibus vel longioribus; folia caulina 
summa opposita lanceolati-acuminata: inflorescentia 
cymosa reducta; capitula 1-8 globosa pedunculata sub- 
‘caerulea diametro 5-10 mm. ; bracteae involucrales 8-12 
lanceolatae acutae integrae vel pauci-dentatae, inferne 
virides, superne argenteae, quam capitulum duplo longi- 
ores: bracteae florales lineari-acuminatae integrae fruc- 
tum multo excedentes; sepala ovata ca. 2 mm. longa; 
petala lineari-oblonga 1—1.25 mm. longa apice fimbriata; 
styh graciles 2.5-8 mm. longi quam calyces longiores; 
fructus (immaturus) ovoideus diametro ca. 2 mm., super- 
ficiebus mericarpiorum dense squamatis, squamis ovatis 
subaequalibus complanatis; chromosomatum numerus 
n=T. 
Plants slender caulescent perennials 1.8-5 dm. high 
from a slender rootstock, the stems solitary to several, 
weakly erect, unbranched below inflorescence: lower 
leaves few, alternate, distichous, linear-lanceolate, 3-20 
em. long, 2-5 mm. broad, remotely serrulate or entire, 
the venation parallel, transversely septate, amplexicaul- 
sheathing, the sheath as broad or broader than the blade ; 
uppermost cauline leaves opposite, lanceolate-acuminate ; 
inflorescence a reduced cyme of 1-38 pedunculate heads: 
heads globose, bluish, 5-10 mm. in diameter; involucral 
bracts 8-12, spreading-ascending, lanceolate, 8-25 mm. 
long, 2-5 mm. broad, acute, entire or with one or two 
pairs of short teeth, green beneath, silvery-white above, 
about twice as long as the head: bractlets linear-acumi- 
nate, entire, much longer than fruit; sepals ovate, about 
2 mm. long, mucronate; petals linear-oblong, 1—1.25 
mm. long, with a narrower fimbriate tip; styles slender, 
Prater LXIV. Eryngium Gentryi Const. & Bye. a, Habit, <4; b, 
cauline leaf, «1; c, floral bractlet, «10; d, involucral bracts, 2; 
e, immature head (two bracts removed), <2; f, lower, 10; g, petal, 
<20. All from Bye 4766. 
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