Vor. IL] PEA FAMILY. 315 
4. Meibomia arenicola Vail. Sand 
Tick-trefoil. (Fig. 2173.) 
Hedysarum lineatum Michx. Fl. Bor. Am. 2:72. 
1803. Not L. 1759. 
Desmodium lineatum DC. Prodr. 2: 330. 1825. 
ra arenicola Vail, Bull. Torr. Club, 23: 140. 
I 
Decumbent or prostrate, pubescent or gla- 
brate, slender, 1°-2° long. Stipules subulate, 
persistent; petioles about 14’ long; leaflets 
ovate-orbicular, '4’-1’ long, glabrous or nearly 
s0, coriaceous, reticulate-veined; racemes 
terminal and axillary, elongated, usually pu- 
bescent ; flowers purple, about 2//-3/” long; 
pedicels slender; loment small, 2-4-jointed, the 
joints uncinate-pubescent, less conyex above 
than below, 114’/-2%4’’ long; stipe about 
equalling the calyx-lobes. 
In dry woods, Maryland to Florida, west to 
Louisiana. July—Sept. 
5. Meibomia Michauxii Vail. 
Prostrate Tick-trefoil. (Fig. 2174.) 
Fedysarum roltundtfolium Michx. Fl. Bor. Am. 
2:72. 1803. Not Vahl. r7or. 
prep uein rotundtfolium DC. Prodr. 2: 330. 
1825. 
Meibomia rotundifolia Kuntze, Rev. Gen. Pl. 
197. I8gr. 
M. Michauxii Vail, Bull. Torr.Club, 23: 140. 1896. 
Prostrate, 2°-6° long, softly pubescent, or 
densely villous. Stipules ovate or triangular- 
ovate, persistent, acuminate, somewhat cor- 
date, striate, ciliate; leaves petioled; leaflets 
nearly orbicular, pubescent, 1/-2 14’ long; pan- 
icles terminal and axillary, loose; bracts decid- 
uous; flowers purple, 3’’-5’” long; calyx-lobes 
ciliate; loment 1’ long or more, 3-5-jointed; 
joints obliquely rhomboid below, slightly con- 
vex above, uncinate-pubescent; stipe equal- 
ling or longer than the calyx-lobes. 
Dry woods, Maine and Ontario to Minnesota, 
I: south to Florida and Louisiana. July—Sept. 
6. Meibomia ochroletca (M. A. Curtis) 
Kuntze. Cream-flowered Tick-trefoil. 
(Fig. 2175.) 
Desmodium ochroleucum M.A. Curtis; Canby, Proc. 
Acad. Phil. 1864: 17. 1864. 
Meibomia ochroleuca Kuntze, Rev. Gen. Pl. 198. 1891. 
Procumbent or decumbent, hirsute, 1°-3° long. 
Stipules ovate, persistent, cordate, striate; petioles 
44/-134/ long; leaflets yellowish green, rugose or 
nearly smooth above, reticulate-veined and some- 
what scabrous beneath, 8’/-2’ long, the terminal 
one rhomboid, the lateral obliquely ovate, smaller, 
or sometimes wanting; racemes terminal and axil- 
lary, simple; bracts deciduous; flowers whitish; 
upper calyx-lobe minutely 2-toothed, the others at- 
tenuate; loment 2-3-jointed, the joints only slightly 
more convex below than above, twisted, oval, pale 
green, glabrous except the uncinate-pubescent 
sutures; stipe about as long as the calyx-lobes. 
In woodlands, New Jersey to Georgia; also in Ten- 
nessee and Stoddard Co., Mo. Aug.-Sept. 
