104 



cent to glabrate : roots strong and greatly elongated : stems wand- 

 like and widely ascending, sometimes forming dense growths 

 several yards in extent, 0.6-1.25 meters long, simple or with 

 numerous, short, subappressed branches above, sometimes with 

 longer ascending branches from near the middle : leaves rather 

 light green, thickish, on short petioles mostly 2-10 cm. long, 

 the joints of the leaflets , especially, cinereous-tomentose ; pubes- 

 cence of lower surface short-tomentulose, that of the midrib 

 denser and more spreading, the margins tomentulose-ciliate ; 

 leaflets oblong, rounded or somewhat narrowed to base and 

 apex, mucronulate, 20—45 mm - l° n g» 8—20 mm. wide, the odd leaf- 

 let slightly the largest and on a petioliile 3—10 mm. long : flower- 

 ing portion of stem elongated and bearing short stiffly sub- 

 appressed branches and reduced leaves : cleistogamous flowers 

 clustered on short lateral branches : petaliferous flowers short - 

 spicate at the ends of slender peduncles 2—5 cm. long sub- 

 terminal on the stem and sometimes on the branches ; spikes 

 closely flowered, shorter than their peduncles, short- oblong or 

 globose, sometimes appearing capitate, 10—20 mm. long: flowers 

 very short-petioled or subsessile : corolla 6—8 mm. long, much 

 surpassing the calyx, whitish and pink tinged with purple, which 

 deepens to a streaky purple spot at the base of the standard : 

 calyx-lobes linear-attenuate, 4—5 mm. long : pod ovate or ob- 

 long-ovate, abruptly acute to somewhat acuminate, 4.5—6.5 

 mm. long, twice the length of the calyx-lobes or less, thinly 

 puberulent all over with short subspreading or tomentulose hairs. 



Massachusetts: Boston, Muddy Pond Hills, September 10, 

 1892, Edwin Faxon, herb. Columbia Univ. 



New York : Xear Bronxville (two stations), in dry soil outside 

 the borders of woods, flowering in late August and early Sep- 

 tember. 



New Jersey : Quaker Bridge, C. Pickering, Herb. Acad. Xat. 

 Sci. Philadelphia. 



Type from Bronxville, X. Y., September 4, 1893, flowers; 

 September 16, 1893, fruit: in herb. X. Y. Botanical Garden. 



Somewhat intermediate in characters between L. Nuttallii Dark 

 and forms of L. proenmbens Michx., but larger than either and 

 well marked throughout as perfectly distinct. 



The much smaller and normally trailing L. proenmbens scarcely 

 needs close comparison. L. Nuttallii is a smaller, normally erect 

 and much less pubescent plant, with more delicately and freely 

 branched inflorescence, longer and more slender petioles, thinner 

 and broader leaflets, which are paler and appressed-pubescent be- 

 neath, more scattered inflorescence of smaller flowers in smaller 



