BOTANICAL GAZETTE. 224 



Finns laxa ; he obtained it from both CaroHnas ; Prof. Gray himself 

 had already collected it in 1842 on Bluff Mountain, N. C, in foliage 

 only ; and last year Mr. A. H. Curtiss again met with it 'on Pinnacle 

 Mountain, N. C. , a Ion;; ridge commencing about 8 miles south of 

 Hendersonville, probably 3-4000 feet high, where in groups of only few 

 trees it occupies slopes near the summit, and even cliffs, while T. 

 Canadensis abounds in the ravines of the same region ; both species 

 are cultivated side by side at the entrance of Mr. Middleton's place 

 at Flat Rock, 3 miles from Hendersonville, where their branches in- 

 terlock and their differences are strikingly exhibited." I have not 

 seen any young shoots of this species and therefore can not say 

 whether their leaves are spinulose-denticulate as they are in young 

 plants of the two other North American species. These may be dis- 

 tinguished thus : 



T. Canadensis : leaves of the mature tree smaller (4-7 lines long), 

 obtuse with 5 or 6 series of stomata on each side of the keel below, 

 destitute of any strengthening cells ; scales of cone in 5/g order, orbic- 

 ular oblong with broad truncate bracts; wing very broad at base, 

 tapering, scarcely longer than the seed which shows 2-3 large oil 

 vesicles. 



T. Mcrtensiana has larger leaves, with two bands each of 

 7-9 series of stomata ; strengthening cells few on the edges and very 

 sparse on upper and lower side of leaf; cones 6-12 lines long (not 

 i^ inches as sometimes stated), scales oblong, mostly a little narrow- 

 ed in the middle, bracts slightly cuspidate; seeds smaller, with few oil 

 vesicles, wings twice as long as the body of the seed. 



Yucca macrocarpa, n. sp. Trunk several (1-4) feet high; 

 leaves spreading, sharp pointed, concave, with entire margins ; pani- 

 cle subsessile with lanceolate, white, fleshy bracts ; flowers not seen ; 

 fruits cylindrical not marked by any ridges, obtuse, pale yellowish, 

 pulpy (4-6 inches long, 6-7 in circumference); seeds thick and large 

 (5-6 lines wide, i-i^ lines thick), rugose-runcinated. 



In ravines of the Santa Rita Mountains south of Tucson, 

 Arizona. —Evidently closely allied to Y. baccata, Torr. , which is lound 

 from Southern Colorado all along through Arizona to Southern Cali- 

 fornia ; distinguished from it by the the absence of fibres on the leaf- 

 edges (I have rarely seen on one or the other this fibre detached from 

 the edge, just as we find it sometimes in Yucca gloriosa, and Y. cana- 

 licidafa, which ordinarily have entire edges), by the smaller, narrow 

 bracts, and the obtuse, not rostrate fruit. The fruit is of the color of 

 a yellow apple, rather pulpy, of a pleasant sweetish acidulous taste. 



JuNCUS RUGULOSUS, n. sp. Pale green, transversely rugose and 

 rough, stems 2-4 feet high from a stout running rhizoma, very weak, 

 leafy; leaves se[)tate ; panicle lax, decompound, 6-8 inches long 

 and wide ; heads with hyaline bracts, 3-5-8-flowered ; sepals linear- 

 lanceolate very acute, nearly equal, the outer carinate i-nerved, the 

 inner 3nerved ; stamens 6, much shorter than sepals, linear anthers 

 shorter than filaments; capsule exceeding the calyx, lanceolate, 

 acute, 3-angled, I -celled; seeds acute at both ends but not caudate, 

 reticulate. 



