28 NORTH AMERICAN FLORA [Voi,UME 22 



the base, opposite, ascending, the upper pair much smaller; bracts 3 mm. long or l^ss ; 

 sepals distinct, spatulate-oblanceolate, obtuse, narrowed below, 3-4 mm. long, obtuse; 

 petals oblanceolate, obtusish, yellow, a little longer than the sepals, erect with reflexed 

 tips ; stamens a little shorter than the petals ; young carpels erect, the styles subulate. 



Type locality : Coahuila, Mexico. 



Distribution : Known only from the type locality. 

 Illustration : Britten loc. cit. f. 18. 



3. Lenophyllum ptisillum Rose, sp. nov. 



Plants forming thick masses, probably perennial, the sterile ones 1-3 cm. high, either 

 simple or branching at base, bearing 3-6 pairs of closely set opposite leaves. Leaves 8-16 

 mm. long, acute, very thick and fleshy, rounded on the back; slightly concave on the face ; 

 flowering stems 4-5 cm. long, erect, bearing many semiterete or sometimes almost hemi- 

 spherical small thick leaves ; flowers solitary, terminal ; sepals green, narrow, fleshy, acute ; 

 petals lemon -yellow, 6-7 mm. long, oblong, slightly narrowed at base, erect below the tips 

 of the sepals, spreading above, obtuse, but with a pronounced mucro on the back just below 

 the tip ; stamens 10, of two lengths, exserted ; carpels erect. 



Described from living plants grown in the succulent house of the Department of Agriculture, 

 which flowered in November, 1904 (Rose no. 11027). The exact origin of this plant is uncertain but 

 it is doubtless from northern Mexico. Our material was obtained from Mr. Frank Weinberg, of 

 Woodside, Long Island, who had procured seeds of Urbima agavoides from Laredo, Texas, with 

 which were several seeds of this species. 



Four specimens of this plant have flowered, all of which have a single terminal flower, but as 

 these specimens are not in the best of condition this character may not be normal. The plant 

 readily sheds its leaves, which quickly take root and soon form a great mass of small plants. 



4. Lenophyllum acutifolium Rose, Smithson. Misc. Coll. 47: 162. 1904. 



Perennial, much branched at base. Leaves opposite, 6-8 pairs, thickish, deeply chan- 

 neled above, acute ; flowers scattered in an interrupted spike or equilateral raceme, sessile 

 or subsessile, borne in the axils of small bracts; sepals subequal, thickish, acute; petals 

 greenish-yellow, distinct, erect below, spreading or reflexed above, acute; the 5 stamens 

 opposite the sepals distinct, the other five borne on the petals ; scales broad, truncate at 

 apex ; carpels erect ; styles slender. 



Type locality : Monterey, Mexico. 

 Distribution : Known only from the type locality. 

 Illustration : Rose loc. cit. f, 19. 



5. Lenophyllum texanum (J. G. Smith) Rose, Smithson. Misc. 



Coll. 47: 162. 1904. 



Sedum texanum J. G. Smith, Rep. Mo. Bot. Gard. 6 : 114. 1895. 

 Villadia texana Rose, Bull. N. Y. Bot. Gard. 3 : 3. 1903. 



Herbaceous, 1-2 dm. high, branching near the base. I^eaves opposite, described as 

 thick, fleshy, obovate to ovate-lanceolate ; inflorescence a spike-like equilateral raceme or 

 somewhat paniculate ; flowers subsessile ; sepals lanceolate, 2-3 mm. long, acute ; petals 

 distinct (?), 4-5 mm. long, oblong, acute, reddish ; carpels erect, long-acuminate. 



Type locality : Near Corpus Christi, Texas. 

 Distribution : Known only from the type locality. 

 Illustration : J. G. Smith loc. cit. pi. 50. 



10. CORYNEPHYLLUM Rose, gen. nov. 



Caulescent, much branched, the stems becoming woody. Leaves club-shaped, terete in 

 cross- section, obtuse. Flowers axillary, sessile; bracts 2, leaf-like. Calyx-lobes distinct 

 or nearly so, the two lower and one upper much enlarged, longer than the corolla, the two 

 lateral ones nearly equal, but small, much shorter than the corolla. Corolla small, green- 

 ish-yellow; petals erect, distinct. Stamens 10, the 5 alternating with the petals free, a 

 little longer than the corolla, the other five borne on the petals, and shorter than they, not 

 appendaged at base. Glands broad, yellow. Ovaries erect ; ovules numerous. 



