HoMALORiifl. LEGUMIN'OS.E. Hal 



Rocky Moiiiitaius, Xutlall! June. — A spreadinj^ docunibont plant, with nu- 

 merous ocliroleucous flowers. Legumes glabrous, 4-8-seeded." Nuttall. 



2. H. mullijiorus : "nearly erect, pubescent with appressed hairs or at 

 length nearly glabrous; stem slightly striate ; leaflets 6-10 pairs, oblon"' or 

 linear-oblong, obtuse; stipules small, ovate, the lower ones united; racemes 

 usually solitary, pedunculate, many- flowered, loose, at length longer than the 

 leaves; bracts very minute, shorter than the pedicels ; legumes linear-oblono- 

 acute, flat, stipitate, the stipe longer than the calyx." Null. — H. nigrescens 

 Nutt. ! msa. Phaca nigrescens, Jlouk. ! ft. Bur'.-Ain. [.p. 143. Ervum raul- 

 tiflorum, Pursh! ft. 2. p. 7S9. Astragalus tenellus, Ptcrsh, ft. 2. p. 473 

 (l)artly), fide Pursh, I. <:. 



Missouri, Lewis, Bradbury! (ex Purah.) On the Sa.skatchawan and 

 north to Kort Franklin on the Mackenzie River, lat. 65, Richardson 

 prrtmmond! With the preceding species, Nuttall! Legumes about ari 

 hich long, nodding, blackish, glabrous. Racemes sometimes in parrs. " Cor- 

 olla ochroleucous; the keel tipped with dull purple." Nutt. — Very near the 

 preceding species, from which we are unable clearly to distinguish it, except 

 by the shape of the pods and the length of the stipe. Accordmg to Nuttall 

 this species has smaller flowers and narrower leaflets; but this is not the case 

 ■with some of our specimens from Hooker. Mr. Nuttall refers Ervum multi- 

 florum, Pursh to his H. dispar; but a fragment of Bradbury's specimen in 

 our possession proves it to belong rather to the present species : probablv the 

 two species may have been confounded, as they are said to grow together. 



♦♦ Caulescent, rigid, minutely cancsccnt, branching plants : leajlets linear or subulate 

 ofte.nfew or wanling : petioles persistent, and sometimes dilated: legumes sessile. 

 {Habit of Phaca longifolia .) — Genisloideac. 



3. //. campp.stris (Nutt. ! mss.) : "nearly erect, stout, with rigid rush-like 

 branches ; peiioles semicylindrical, somewhatdilated towards theextremitv - 

 the lower ones bearing 3-5 pairs of rigid linear-subulate leaflets ; the upper- 

 ones 3-foliolate or simple ; stipules triangular-subulate ; the uppermost short • 

 racemes 5-10-flowered, loose ; calyx hirsute with black hairs, with short sub- 

 ulate teeth ; legumes pubescent, long and straight, compressed. 



" Sandy plains of the Colorado of the West, near the sources of the Platte. 

 — About a foot high. Flowers ochroleucous, slightly tinged with purple' 

 [about as large as in Vicia Cracca] : bracts shorter than the pedicels. Le- 

 gumes about an inch in length. The petioles are dilated at the extremity into 

 a very long linear-subulate leaflet, as in Phaca longifolia." Nultall. 



4. H.ju7iceus (Nutt. \ mss.): " erect, slender, milch branched ; radical pe- 

 tioles bearing 1-2 pairs of minute leaflets, the cauline ones filiform and leaf- 

 less; stipules broadly triangular, minute ; peduncles very long, the flowers few 

 and remote ; bracts scarcely any ; teeth of the calyx very short and obtuse j 

 legumes long, linear, straight, piiberulent. 



"With the precedinsr, and in sandy places in the Rocky Mountain ran^^e 

 towards the Oregon. — Smaller and much more slender than the preceding. 

 Legumes an inch long, narrow, many-seeded." Nullall. 



5. H. ortJwcarpu.<i (Nutt. \ mss.): "decumbent, slender, flexuous, much 

 branched from below; lower leaves with 1-2 pairs of long narrowly linear 

 and very acute leaflets ; upper leaves simple, sessile, similar to the lower 

 leaflets; stipules minute, dilated ; pepuncles longer than the leaves, few-flow- 

 ered ; teeth of the calyx very short, acute ; legumes oblong-linear, nearly- 

 straight, coriaceous, somewhat puberulent, torulose, 6-8-seeded. 



" With the preceding.— Flowers ochroleucous tinged with dull purple. 

 Pedicels rather long: bracts minute.— -A very rush-like plant, with divaricate 



