At)Dt:NDA. G81 



style persistent. This species is from G' to 15' high, liglit yellowish-l)rowii, 

 witli sonic bluish-purple in the flowers, tlicse in a loose spike from .T to !)' lonj^. 

 (Adv., from Eu.) 



To pnqo 410. 

 .3. vVtriplkx rosk.v, L. More hoary-mealy than A. ])atula ; leaves short- 

 petioled or the upper sessile, rhombic-ovate or oblong -with a wcdg-c-sliajjcd base, 

 foarsely sinuate-toothed; fertile flowers mostly clustered in the axils; fruiting 

 bracts broad, cut-toothed and warty, united to the middle. — Albanv, New York, 

 in streets and waste places, Sept., C. 11. Peck, G. \V. Clinton. ( Atlv. from Eu.J 



To page 452. 

 5\ Quercus prinoides, Willd. (Q. Trinus, var. humilis. Marsh.), the 

 Dwarf Chkstnct or Chixquapin-Oak, is probably a quite distinct species. 

 ^Vs noted by Mr. Emerson in Trees of Mass., some of the scales of the cup are 



a])t to proiluce abortive little acorns in their axils. 



To page 479. 

 S". Lemna paucicostata, Hegelmaier, in litt. " Fronds obliquely ob- 

 ovatc (1"- l^" long), thin, mostly grouped 3-.'J together ; fruit and style as in 

 L. pcrpusilla; seed marked with 12- 14 prominent (instead of 30-40 delicate) 

 ribs, between them (in both species) transversely striate. — Ponds, about St. Louis 

 and southward into the tropics : frequently fertile, Aug. - Oct." Emjelmann. 



To page 483. 

 3. Naiae Indioa, var. graeillima, Braun, Mss. "Branches alternate; 

 leaves very narrowly linear, nearly caj)illary, straight, serrate (with 20-40 teeth 

 consisting of 3 cells each), the rounded lobes of the sheathmg base spinulose- 

 ciliate; fruit linear, brown, impressed-dottcd between the numerous (about 24) 

 ribs. — In ponds, Albany, New York, C. H. Peck, Woburn, Massachusetts, 

 \Vm. Boott; 1867, Missouri, Engelmann. — N. minor, not yet found in America, 

 is dichotomous, with recurved leaves, few and stout spikes, and seeds trans- 

 versely i-eticulatcd. — N. flcxilis has the leaves minutely serrate with teeth of 

 single cells, their abrupt and rounded sheathing base toothed, the yellowish- 

 brown seeds lance-oval, smooth and shining, &c." Engelmann. 



To page 491. 

 3. Triglochin triandrum, Michx. Scape and leaves slender (6' -12' 

 high) ; flowers very small, with only 3 sepals and 3 stamens (instead of G as in 

 the others) ; fruit globose-triangular, or when dry 3-lobed. — Sea-shore of Mary- 

 land and Virginia, W. M. Canbij, and southward. Aug. - Oct. 



To page 499. 

 2". Habenaria nivea, Sjircng. Stem slender, l°-Uo high, many- 

 leaved, the 1 or 2 lower leaves lance-linear and 4' -8' long, the others small and 

 bract-like ; spike cylindrical, loosely many-flowered ; flowers white, small ; ))et- 

 als and entire lip linear-oblong ; sj)ur thread-shaped, ascending, as long as the 

 white ovary. — Pine-barren swamps, S. Delaware, W. M. Ciuiln/, and south- 

 ward. Aug. Ovary not twisted : spur thercl'ore looking towards the axis. 



