£ 



Sad'souia.'] XL. leguminos.^, 53 



Series I. Fhyllodinese. — Thyllodineotis hramhiets fat, Hgidly conaceons^ toothed 

 or lob ed; often pric^/i/. ■•'•.. .- , 



Flowers in racemes or spikes terminating the phyllodia , , ... 1, J, dilatafa. 

 Flowers in racemes or s(^ik"es laLeral or terminating the normal 



branches ...•..: 1 ;; 1 ..,..,.. 2. /. densiflora. 

 Flowers in heads sessile amongst the pliyllodia ...... 3. 7. cardaacea. 



Flowers mostly solitary on the teeth or lobes of the phyllodia . , 4. J.foribiinda. 



^ ^ ^ -' A 



Skries IT. Ramosissixnse. — Subphf/IIodineous hrancklets crowded, linear, angular- 

 striate, with projecting tooth-like nodes. 



Flowers in dense terminal spikes. Calyx very hirsute , . • . 5. /. odontoclada, 

 ilowcrs ill short terminal racemes. Calyx sparingly silky-pubescent 6. /. ramosissivia, 



oERiES III. Pun^entes. — Branchlets more or less phgllodineous, spinescent, divarl' 

 cate, terete a^g/dar or slightly compressed. • 



Undershmhs, occasionally with a few leaves at the base, panicu- 

 lately branched upwards, 



nowcrs on the punn;cnt branches ,.♦,.,..,. 1, J.foliosa. 

 Flowers on vir^^ate unarmed branches; pungent branches sterile 

 (see below, Seopari<e), 

 Branching shrubs. 



Branchlets terete sulcafc or slightly angulai". 

 liowers 2 or 3 below the summits of the pungent branchlets, 



which are usually divarigatcly trichotomous . . . . 8. /. sjnnosa. 

 Flowers in clusters or very short racemes, terminal or at the 

 base of the pungent branchlets. 

 PiMigent branchlets mostly simple. Calyx miuutely pubes- 

 cent . . . , , 9. /. stricta, 



• Pungent branchlets mostly branched. Calyx silky-pubes- 

 cent or vitlous 10. J", hakeoides. 



' g ^l^wers in distinct terminal racemes. Branchlets crowded . 11. J.farcellata, 

 . '■^^'ichlets very angular or com])rcsscd, usually silky-pubescent, 

 -l imgeut branchlets short, crowded and forked or trichotomous. 

 ■rungent branchlets slender. Flowers distinctly racemose. 



rod distinctly though shortly stipitate !!• J-furcellata. 



Fuiigent branchlets stout. Flowers iu irret;ular racemes 



""xed with phyllodia. Pod nearly sessile ^ • . . ^ \%. J. horrida. • 

 Fungeat brancrhlets mostly simple aud not crowded. 

 Fod ovate, nearly sessile. Flowers shortly or loosely race- 

 mose , ' 13. /. sericea. 



Pod oblong on a stipes of about 2 iiues. Flowers rather 

 l^^rgc, few, distant 14. /. Stenibergiana. 



J^^^^^!*^^"^^' ^^^^"^^^^^ macrocalgx, and perhaps some others auioug Scoparia, have 

 sionally a few pungent barren branchlets near the base of the stem.) 



«rfw;^^ ^^' Scoparise.— /'^irmW branches virgate or rush-like wilhout pungent 



occasiona 



i.> 



Cal *^'^^' "^^Gh-h ranch edfiexuose or puvgent. 



('.^■^'^\^.^^l'"as long as the lobes or longer, turbinate, 10-uerved. 

 Calv I V ^"^"^^ ^^^ tube half as long as the lobes . . • - 15. J", vertiicosa. 

 Calvx f > ^^^'^' ^^^ t"^e "^^^'■^v as long as the lobes ... 16. /. thesiotdes, 



CalvTr>!^^^ short, without prominent nerves. 



J^-iobes deciduous (or persistent in /. restioides, umhellaia, 

 ^^^\<^^J^itata). Buds not angular, 

 ^^^uches Iha or angular. 

 Pod sessile. -^ 



Pod oblong-lnnccolate, flat, I in. long. Branches Hat . 17. /- compressa. 



* . 



