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ROSE MEXICAN AND CENTRAL AMERICAN PLANTS. 115 



lonoxalis tenuiloba Eose, sp. nov. 



]?ulbs suUtary; petioles about the length of the peduncle, glabrous; leaflets 3, 

 cuneate at base, deeply 2-lobed; lobes strongly divergent, linear, 2.5 to 5 cm. long' 

 acute; peduncle filiform, 10 to 12 cm. long; umbel about 8-flo\vered; pedicels filiform^ 

 2.5 mm. long; sepals obtuHc, gland- tipped; filaments hairy. 



Type tJ. S. National Herbarium no. 236917, collected by Marcus E. Jones at 

 Colima, State of Colima, July 2, 1892 (no. 118). 



This ppecies luis very remarkable leaflets. 



lonoxalis tetraphylla (Cav.) Rose. 



Oxalis tdraplu/Ua Cav. Tc. 3: 19. />/. £S7, 1794. 



OxaUsdeppeil .odd. But. Cab. 15: jff. 1500. 1828. 



Type locality: *'In :\lGxico Iinperio." 



I have referred to this ^^pecies a plant collected by myself on the pedregal at San 

 Angel near the City of Mexico, which, from its apiunirance and station, is more likely 

 to^ l3elong liere than any other Avhich I have s?een. CavanillesN figure shows a plant 

 M ith 3 or 4 broad, obovate leaflets and with elongated peduncles and slender pedicels, 

 all of which are imssessed by my specimen. 



lonoxalis vespertilionis (Zucc.) Rose. 



Oxalh vespertnionis Zucc. Abh. Math. Phys. Classo 2: .%0. 1834, 



MEXICAN AND CENTRAL AMERICAN SPECIES OF LOTOXALIS- 



The followino; Mexican species of Lotoxalis are cither new or have 

 been passing- as species of Oxalis. 



Lotoxalis angustifolia (II. B. K.) Rose. 



Oxalis augustifoUa II. B. K. Nov. Gen. Si Rp. 6: 249. 1828, 



Xiotoxalis dichotoma Rose, np. nov. 



Woody for some distance Ixdow, slender, erect, rarely if at all branching, some- 

 wliat iiairy, 30 to 60 cm. higli; petioles slender, 2 to 7 cm. long, somewhat 'pilose; 

 leaflets orbicular to oblong, 2 to 4 cm. h^ng, rounde<l at base and apex or sometimes 

 obtuse, thin, more or less hairy on both sides, paler beneath, the terminal leaflet 

 remote; pedicels slender, 2 to 7 cm. long, longer than tlie subtending petiole, dichoto- 

 mously branching with a single flower in the fork, several-flowered; sepals 4 mm. 

 long, slightly hairy; petals yellow, twice as long as the sepals; stamens glabrous. 



Type ^J, S. National Herbarium no. 300500, collected l)y J. N. Rose in the foothills 

 of the Sierra Madre, near Colomas, Sinaloa, July, 1S97 (no. 1650). 



This species belongs to the grf)up Uedysaroidcae, and is closely related to the 

 so-called Oxalis -^rphim. 



Iiotoxalis fasciculata (Turc/. ) Rose* 



Oxiills faiickuhiia TuYQ-A, Bull. Soo. Nat. Mos{^ 32^: 272. 1859. 



Lotoxalis g-labrata (Baker) Rose. 



Oxalis neaei glabrata Bak(^r, Ref. Bot. 5:^;/. ^9S. 1S71. 



Lotoxalis neaei (DC.) Rose. 



Oxalis neaei DC. Prod. 1 : (190. 1824. 



liOt oxalis occidentalis Rose, sp, nov. 



Somewhat woody below, branching at base; 1)ran(4ics angled, glabrous; petioles 

 usually hairy; leaflets three, glabrous thrfuighout or slightly ciliate, orbicular to 

 narrowly oblong, obtuse or slightly refuse, the up]>er leaflet somewhat remote; 

 peduncles 2 to 2.5 cm. long, longer than tlie petioles; flowers iji umbels of 3 or 4; 

 buils ovate, acute; sepals ovate, 5 mm, long, acute, glabrou.s or nearly so; petals 

 yellow; capsule oblong, 6 to 8 mm. long, smooth; cells 3-seeded. 



4153 — VOL X, FT 3— OG 



5 



