350 PROCEEDINGS OF THE ACADEMY OF 



18. H. ceassifolia, Benth. in Linn. Trans. H. stolonifera, Lindl. Bot. 

 Reg. t. 1977. H. platycarpa, Nutt. in Torr. and Gray Fl., in fruit only. 

 Tall and stout ; the stems nearly glabrous ; the leaflets (915, thickish) 

 minutely pubescent or soon glabrous. Bract or floral leaf mostly tri-foliolate 

 and mostly above the middle of the peduncle. Calyx-teeth very short. A 

 pubescent variety (H. stolonijera, var. pubescens, Torr., 1. c.) not only retains 

 considerable down on the leaves, &c, but even the calyx and pedicels are 

 pubescent. Oregon and California. 



Iff Peduncles usually equalling or exceeding the leaves, bearing a 4 12- 

 flowered umbel (or the lowest sometimes only 1 3-flowered), the bract at its 

 apex, or wanting. Stipules scarious. Flowers yellow, and partly white or 

 rose-purple, half an inch or more long ; the keel abruptly inflexed at the 

 apex, acutish, a little shorter than the wings. Calyx-teeth at least nearly 

 half the length of the tube. Leaflets 5 9, rarely 11. 



19. H. oblongifolia, Benth. PI. Hartw. p. 305 ; Torr. 1. c, which is ap- 

 pressed-pubescent, with 9 1 1 narrowly oblong and acute leaflets, a unifoliolate 

 bract, the calyx-teeth a little shorter than the tube, I do not possess ; but 

 it is said to be otherwise much like the next species. California ; Coulter, 

 Parry. 



20. H. bicolok, Dougl. in Bot. Reg. t. 1257. Lotus pinnatus, Hook., Bot. 

 Mag. t. 2913. Glabrous, rather tall, with 5 9 obovate or oblong leaflets 

 and no bract, or rarely a small unifoliolate one ; the calyx-teeth about half the 

 length of the tube. Corrolla yellow, the keel often white. The bract cer- 

 tainly does now and then occur, as, for instance, even in my specimen of 

 Hartweg's, No. 1698. Oregon and California. 



21. H. gracilis, Benth. ; Torr. Bot. Mex. Bound., t. 15. Equally glabrcus 

 and more slender than the foregoing, a span to a foot high, weak and spread- 

 ing, with large stipules, 5 7-leaflet -, those of the lower leaves often 3 and 

 obovate-cuneate ; the umbel subtended by a petioled 3-foliolate bract ; the 

 calyx-tube scarcely longer than the teeth. Corolla with the keel and wings 

 purple or tinged with rose-color. California. 



ftft Peduncles several-flowered (or the lowest sometimes 1 3-flowered), 

 the 1 3-foliolate bract at its apex, or sometimes wanting. Stipules reduced 

 to blackish points or glands, often deciduous. Claws of the petals slightly, if 

 at all, exserted from the tube of the calyx : keel straightish, dilated up- 

 wards. Legumes glabrous. Leaflets not exceeding 7. 



Xt Flowers large , keel small, very much shorter than the ample wings. 



22. H. grandifloka, Benth. 1. c. H ochroleuca, Nutt. in Torr. and Gray, 

 Fl. Tall (15 feet high), softly, more or less pubescent. Leaflets 5 7, oval 

 or oblong. Peduncles elongated. Flowers 7 11 lines long; teeth of the 

 calyx subulate from a broadish base, shorter than or about as long as the 

 tube ; corolla yellowish or greenish white often tinged with purple. Califor- 

 nia. Originals of Nuttall's H. ochroleuca and Bentham's H. grandiflora, now 

 before me, are identical, both being of the less pubescent forms, with moderate- 

 sized flowers, and the calyx-teeth about as long as the tube. The specimens 

 which best exemplify the specific name have flowers almost an inch long, and 

 a short and soft pubescence. 



Var. ? anthylloides, Gray, in Proceed. Calif. Acad. ined. Low, a foot high 

 or less, velvety-pubescent. Leaflets of the upper leaves acute or pointed. 

 Peduncles scarcely exceeding the leaves. Calyx-teeth attenuate, about as 

 long as the tube. Corolla (7 lines long) white and purplish-red. Island of 

 Catalina, Mr. Wallace ; an intermediate form. Sta. Lucia Mountains, Dr. 

 Brewer. A remarkable form, but in which I cannot detect characters warrant- 

 ing a specific distinction- 



[Deo. 



