Part 1, 1907] GERANIACEAE 21 



63. Geranium Schiedeanum Schlecht. Ljnnaea 10 : 253. 1836. 

 Perennial, the caudex branched. Stems several together, not scape-like, 2-4 dm. 

 long, hirsute, the first internode little if at all longer than the succeeding ones ; leaf-blades 

 angular in outline, 1.5-4 mm. broad, 3-5-parted, the divisions parted into linear lobes, 

 which are closely pubescent with silvery white hairs beneath, green above; petioles rela- 

 tively short, hirsute ; sepals awn-tipped, the outer ones 7-9 mm. long, the bodies oblong 

 or oblong-lanceolate, hirsute, ciliate ; petals pink-purple, 11-15 mm. long; style-column 

 1S-23 mm. long, finely hirsute ; carpel-bodies about 4 mm. long, pubescent ; seeds 

 reticulate. 



Type locality : I.a Joya, Mexico. 

 Distribution : Mexico. 



64. Geranium monanthum Small, sp. nov. 



Perennial, the caudex branched. Stems branched especially near the base, spreading, 

 mostly 1-3 dm. long, finely retrorse-pubescent ; leaf-blades pentagonal in outline, 2-3.5 

 cm. wide, with scattered hairs on both sides, bright-green above, pale-green beneath, 

 mainly 5-parted, the divisions broadly cuneate, incised and coarsely toothed, the teeth 

 mainly ovate ; petioles strigillose, those of the stem-leaves mainly shorter than the blades ; 

 pedicels strigillose ; sepals awn-tipped, the outer ones 8-10 mm. long, the bodies oblong- 

 lanceolate, with scattered hairs on the back, the tips slender, 1.5-2 mm. long ; petals pink, 

 14-17 mm. long, deeply notched ; fruit not seen. 



Type collected on the northwest side, near the summit, of Mt. Zempoaltepec, Oaxaca, Mexico, 

 July 9~, 1894, E. W. Nelson 659. 



Distribution : Known only from the type locality. 



DOUBTFUI, SPECIES 



Geranium alpicola Loes. Bull. Herb. Boiss. II. 3: 92. 1903. From Guatemala; said 

 to be related to Geranium acaule, a native of Ecuador. 



Geranium andicola Loes. Bull. Herb. Boiss. II. 3: 93. 1903. G. andicola longipedi- 

 cellata Loes. Bull. Herb. Boiss. II. 3 : 93. 1903. G. andicola brevipedkellata Loes. Bull. 

 Herb. Boiss. II. 3 : 93. 1903. All from Guatemala ; said to be related to Geranium 

 Schiedeanum, a native of Mexico. 



3. ERODIUM L/Her.; Ait. Hort. Kew. 2: 414. 1789. 

 Annual or perennial herbs, at first acaulescent, later with more or less elongated stems. 

 Leaves opposite ; blades merely toothed or pinnatifid or piunately divided, often long- 

 petioled. Sepals 5, the awn-tips sometimes bristle-appendaged. Petals 5, those of the 

 later flowers more reduced than those of the earlier ones. Stamens 5, alternating with 

 5 staminodia. Style-column conspicuously elongate, the styles pubescent within and 

 spirally coiled when freed from the central axis. Carpel-bodies narrow, acute at the base. 

 Seeds smooth. 



Type species, Erodium crassifolium Soland. 



Leaf -blades toothed, palmately lobed, or sometimes pinnatifid in E. Bolrys. 

 Leaf-blades as broad as long or nearly so, cordate at the base. 



Pedicels closely appressed-pubescent. 1. E. texanum. 



Pedicels glandular-pubescent with spreading hairs. 



Corolla white ; peduncles and petioles glandular-pubescent with 



spreading hairs. 2. E. macrophyllum. 



Corolla rose-red or purple ; peduncles and petioles minutely 

 canescent. 3. E. calif ornicum. 



Leaf-blades much longer than broad, not cordate at the base. 4. /•". / 



Leaf-blades pinnately divided. 



Sepal-tips not bearing bristle-like appendages ; anther-bearing filaments 



2-toothed. 5. E. moschatum. 



Sepal-tips bearing 1 or 2 bristle-like appendages ; anther-bearing fila- 

 ments toothless. 6. E. cicularium. 



