50 NORTH AMERICAN FLORA [Vor^UMB 22 



2. Altamiranoa (?) Jurgensenii (Hemsl.) Rose. 



Cotyledon Jurgensenii Hemsl. Diag. PI. Nov. 1 : 9. 1878. 



Suffruticose, erect, hispidulous, branching. lyeaves small (3-4 mm. long), ovate-ob- 

 long, obtuse, hispidulous ; inflorescence a 2- or 3-flowered cyme ; sepals hispidulous, dis- 

 tinct, linear-lanceolate, obtuse ; corolla reddish, twice as long as the calyx, its lobes lan- 

 ceolate, apiculate, united at base. 



Type locality : Mexico. 



Distribution : Known only from type specimen. 



3. Altamiranoa elongata Rose, Bull. N. Y. Bot. Gard. 3 : 31. 1903. 



Perennial, at first with slender erect branches, but rather weak and becoming prostrate, 

 striking root at every joint, finely pubferulent. I^eaves small, closely set at right angles to 

 the branches, appearing imbricate in dried specimens, linear-ovate, acute, puberulent, 6 

 mm. long, turgid but somewhat flattened, with a cordate somewhat clasping base ; inflor- 

 escence paniculate, its ultimate branches secund, bearing a few sessile flowers ; sepals linear, 

 2 mm. long, puberulent; corolla white or pinkish, 5 mm. long, campanulate, its segments 

 united at base into a short tube ; carpels distinct. 



Type locality : Mountains above Pachuca, Mexico. 



Distribution : Type locality and vicinity. 



4. Altamiranoa calcicola (Robinson & Greenman) Rose, Bull. 



N. Y. Bot. Gard. 3 : 32. 1903. 



Sedum calcicola Robinson & Greenman, Am. Jour. Sci. III. 50 : 150. 1895. 



Perennial, described as procumbent but probably only so at base, 2-3 dm. high, much 

 branched, green or sometimes quite glaucous, the older branches somewhat roughened. 

 Leaves numerous, very turgid and nearly terete (in all specimens seen), 10-16 mm. long, 

 obtusish ; inflorescence of 2 or 3 secund racemes, 3-5 cm. long, many-flowered ; pedicels 

 very short or wanting; sepals ovate to oblong, obtuse, somewhat unequal, 1-2.5 mm. long; 

 corolla- segments greenish-yellow, united at base, lanceolate-attenuate, 5 mm. long ; scales 

 short and broad ; carpels united at base. 



Type locality : I^as Cuevas, San Luis Potosi, Mexico. 

 Distribution : San Luis Potosi. 



5. Altamiranoa parva (Hemsl.) Rose, Bull. N. Y. Bot. Gard. 3: 32. 1903. 



Sedum parvitm Hemsl. Diag. PI. Nov. 3 : 51. 1880. 



Perennial, herbaceous, cespitose, much branched. Leaves oblong, spreading, 3-6 mm. 

 long ; sepals short, obtuse ; corolla-segments yellow, lanceolate, acute, united at base ; scale 

 minute. 



Type locality : Near the city of San Luis Potosi, Mexico. 

 Distribution : Known only from the type locality. 



6. Altamiranoa Goldmani Rose, Bull. N. Y. Bot. Gard. 3 : 32. 1903. 



A low much branched Sedum-li^o. plant, glabrous throughout, with tuberous-thickened 

 roots. Old stems somewhat woody, procumbent and rooting at the joints, bearing scattered 

 rosettes of leaves; flowering branches more elongated, 5-6 cm. long, rose-colored, bearing 

 many rather closely set leaves ; leaves very narrow, linear or nearly so, 10-12 mm, long, 

 flattened, obtuse ; inflorescence a very compact few-flowered cyme ; flowers sessile ; sepals 

 distinct, linear, fleshy but flattened, obtuse, appressed to the corolla, unequal, 4-6 mm. 

 long, reddish-tinged; corolla 6 mm. long, not at all 5-angled, very thin when dry, pale-yel- 

 low, tinged with red, orange- colored when dry, its tube a little longer than the lobes ; lobes 

 ovate, acute, spreading ; stamens 10, all borne at the top of the corolla-tube ; scales small, 

 purplish, 0.3 mm. long, about as broad as high, retuse at apex ; carpels 5, distinct, oblong, 

 reddish near tip, many-seeded ; styles short. 



Type locality : Summit of Cerro de Patamban, Michoacan, Mexico. 

 Distribution : Known only from the type locality. 



