Se ga 
TRICHOSTEMA SUFFRUTESCENS nn. sp. Root stout, ligneous; 
stem woody at base, erect 2.5-5 dm. high, branching from near 
the base, very leafy, canescent, densely glandular-puberulent 
_ towards the summit: leaves opposite with smaller ones fascicled 
in the axils, short-petioled, blade 1 cm. long and about one-half 
as wide, the uppermost much reduced and bract-like, oblong- 
ovate or obovate, wedge-shaped at base, rounded and sometimes 
slightly emarginate at apex, thickish, obscurely punctate, margin 
ciliate, both surfaces minutely glandular-puberulent ; veins, except 
the midrib, obscure; flowers on slender, recurved, glandular pedi- 
cels in panicled, one-sided racemes; calyx strongly. oblique, 
slightly puberulent and covered with shining glandular grains, 
bright green, veins conspicuously reticulated, upper three teeth 
about twice longer than the two lower ones, all acute; corolla 
Strongly bilabiate, bright blue; filaments 20-25 mm. long, closely 
coiled ; nutlets gray-brown, obovoid, about 1.5 mm. in longest 
diameter, rugose-reticulatéd, reticulations small and shallow. 
Nearest to 7. dichotomum L., from which our plant differs in 
the woody base of its stem, in the shorter-petioled and smaller 
leaves, in the finer and more glandular pubescence of stem and 
Calyx, in the much longer filaments (10-15 mm. long in 7: dicho- 
Yomum) and in the smaller and darker nutlets, which are less 
deeply reticulated, with smaller and rounder areola. Resembles 
in habit 7. Arizonicum A, Gray, but the irregular corolla places 
It in Section Streptopodium Benth. 
Collected at Eustis, in 1894, by Mr. George V. Nash 
(Number 625), 
~ PLUCHEA FG:TIDA IMBRICATA n. var. Perennial from a stout, 
SOmewhat woody rootstock; stem herbaceous, erect, 8-24 dm. 
igh, branched towards the summit, angled, striate, cinerous- 
Pubescent, also resinose-granular above; leaves thick, firm, dull 
. Steen, lower 5_6 cm. long, 2~2.5 cm. wide, upper much reduced, 
“asping by the short auriculate base, ovate-oblong to triangular- 
_ vate, broadest at base, mucronate at apex, coarsely and unevenly 
€ntate-serrate with rigid callous teeth, upper surface glandular- 
Puberulent, lower surface more densely so, veins reddish-brown, 
Prominent on the under surface; heads 7-8 mm. high on short, 
put, pubescent peduncles, in dense, cymose, rounded clusters 
Which are subtended by two to four small, bract-like leaves and 
ere borne at the summit of short or sometimes greatly elongated 
Fanches from the axils of the upper leaves; involucral scales 
reddish brown, glandular-puberulent, imbricated in 4-6 rows, the 
_ Sutermost short, ovate-oblong, rounded at summit, the innermost 
