Oxalis jacquiniana Kunth

Ionoxalis obliqua Rose, sp. nov
Plants 11-30 cm. tall, the bulb-scales 3-ribbed ; leaves about one half as tall as the scape or more, the petioles glabrous or sparingly pubescent; leaflets 3, the blades 1.5-2 cm. long, obreniform, bright-green and glabrous or nearly so above, glaucescent and sparingly pubescent beneath, broadly retuse or nearly truncate at the apex ; scape glabrous ; cymes 3-6-flowered ; pedicels 1-2 cm. long, glabrous ; sepals lanceolate to linear-lanceolate, about 6 mm. long, bearded at the apex, each with two elongate apical tubercles which are commonly lobed at the base ; petals light-purple, 17-23 mm. long, decidedly oblique ; shorter filaments glabrous ; longer filaments pubescent, prominently appendaged on the back; styles pubescent ; capsules not seen.
Tvpe collected near Trinidad, Hidalgo, Mexico, C. G. Pringle 8S92. Distribution : Hidalgo.

Ionoxalis quadriglandula Rose, sp. nov
Plants 1-1.5 dm. tall, the bulb-scales 3-ribbed; leaves fully one half as tall as the scape, the petioles glabrous; leaflets 3, the blades lunate, 1.5-2.5 cm. wide, bright-green above, glaucescent beneath, glabrous, the lobes ovate ; scape sometimes sparingly pubescent on the lower part ; cymes 4-6-flowered ; pedicels 1-2.5 cm. long, glabrous; sepals lanceolate to oblong-lanceolate, 4-5 mm. long, glabrous, each bearing 4 long and narrow apical tubercles; petals violet, 11-14 mm. long; shorter filaments with few spreading hairs; longer filaments pubescent with shorter hairs, each one appendaged on the back below the middle.
Type collected on Sierra de Tepoxtlan, Morelos, Mexico, May 28, 1904, C. G. Pringle8821.
Distribution : Morelos.

Ionoxalis trinervia Rose, sp. nov Plants 1-1.5 dm. tall, the bulb-scales 3-ribbed ; leaves fully one half as tall as the scape, the petioles glabrous ; leaflets 3, the blades obreniform, 2.5-3.5 cm. wide, deep-green and glabrous or nearly so above, slightly paler and with scattered hairs beneath, the lobes rounded ; scapes sparingly pubescent when young, glabrous in age ; cymes 4-11-flowered ; pedicels 1-2 cm. long, glabrous; sepals oblong to linear-lanceolate or nearly linear, 4.5-5.5 mm. long, glabrous, each bearing 4 long and narrow apical tubercles ; petals violet, 11-15 rum. long; shorter filaments glabrous ; longer filaments pubescent, each with a prominent appendage on the back near the base.
Type collected near Bttena Vista Station, Hidalgo, Mexico, August 6, 1904, C. G. Pringle 8946. Distribution : Hidalgo.

Ionoxalis grahamiana (Benth.) Small
Oralis Grahamiana Benth. PI. Hartw. 9. 1839.
Plants 1-2.5 dm. tall, the bulb-scales 3-ribbed ; leaves about one half as tall as the scape, the petioles glabrous ; leaflets 3, the blades obreniform, 1-2.5 cm. wide, nearly truncate or shallowly notched at the apex, glabrous ; scapes glabrous ; cymes simple, mostly 2-5-flowered; pedicels 1-3 cm. long, glabrous ; sepals lanceolate to oblong-lanceolate, 4.55.5 mm. long, each bearing 2 long partially confluent apical tubercles which are mostly 2lobeil at the base ; petals violet, 12-15 mm. long ; shorter filaments glabrous ; longer filaments pubescent, unappendaged.
Type locality : Tlalpuxahua, Mexico. Distribution : Known only from the type locality.

Ionoxalis jacquiniana (H.B.K.) Rose, Contr. U. S. Nat Herb. 10: 113. 1906.
Oxalis Jacquiniana H.B.K. Nov. Gen. & Sp. 5: 237. 1822.
Plants 0.5-1.8 dm. tall, the bulb-scales 3-ribbed; leaves about one half as tall as the scape, the petioles glabrous ; leaflets 3, the blades broadly obovate, 0.5-1.2 cm. wide, glabrous, pale-green; scapes glabrous ; cymes 3-6-flowered ; pedicels 1.5-2 cm. long, glabrous ; sepals oblong-lanceolate to broadly linear, 5.5-6 mm. long, glabrous, each bearing 2 narrow apical tubercles ; petals violet, 11-14 mm. long; shorter and longer filaments pubescent, unappendaged.
Type locality : Real del Monte, Mexico. Distribution : Middle Mexico.

Oxalis jacquiniana là một loài thực vật có hoa trong họ Chua me đất. Loài này được Kunth mô tả khoa học đầu tiên năm 1821.