8 



PROCEEDINGS OF THE ACADEMY OP 



cato-ramosus, ramis gracilibus, foliis eliptico-oblongis, apice subacutis, breve 

 petiolatis, supra viridibus, subtus glancis, floribus axillaribus solitariis nume- 

 rosis, dioicis, 5-sepalis, longe pedicellatis, fructus ? 



Western Texas. June. 



1^2 feet bigh ; leaves 69 lines in lengtb and 45 lines broad ; petioles 

 1 2 lines long ; pedicles 4 5 lines in length ; sepals oblong ovate. 



UrTICACEjE. 



Morus microphylla, s. n. Arbuscula 1520 pedalis, foliis petiolatis ; 

 cordato-ovatis vel trilobatis, serratis, dentibus mucronatis, utrinque glabri- 

 usculis, venis et marginibus parce et minute ciliatis, stipulis parvis linearibus 

 membranaceis, caducis. 



Western Texas ; growing in clumps. 



Stems and branches smooth, with a light grey bark ; fruit ripe last of May; 

 black and sour, with little juice and deep sinuses between the achenia, which 

 are little compressed ; styles divaricate and obtuse ; leaves generally entire, 

 and 1 1^ inches in length and 1 1^ inches wide ; the lobed leaves are aboxit 

 2i inches long, the middle lobe prolonged and acuminate. The preceding 

 characteristics are constant, and no person seeing this mulberry in its native 

 situations would call it a form of Morus rubra. 



LlLIACEJE. 



Yucca longifolia, s. nov. Caule erecto 6 8 pedali, foliis ensiformi- 

 lanceolatis, confertis, rigidis integris acuminatis pungentibus, inferioribus re- 

 fiexis, paniculis magnis terminalibus ; floribus campanulatis, sepalis ovatis 

 acutis, bracteis ovato-lanceolatis acutis margine membranaceis, capsula ob- 

 longo-cylindracea utrinque obtusa. 



Western Texas. Flowers in March. 



Stems crowded with leaves to the summit, lower leaves reflexed, often, 

 when dead, with their points in the ground. Leaves 2| 3 feet in length, 

 with curved, margins ; fruit 4 5 inches long, cylindrical and obtuse at each 

 end. 



Yucca constrict a, s. n. Foliis lineari-lanceolatis margine filamentosis 

 acuminatis in apice caudicis confertissimis, caudex 12 18-policaris, scapus 

 4 6 pedalis, paniculis magnis, floribus numerosis longe pedunculatis, bracteis 

 ovatis acutis margine membranaceis, sepalis ovato-oblongis, subobtusis, cap- 

 sula subcylindracea in medio constricta. 



Western Texas. June. 



Leaves crowded at the top of the caudex, which is from a foot to eighteen 

 inches in height ; leaves 12 15 inches long and 4 6 lines broad. It differs 

 from the Y. angustifolia of Pursh in its constricted capsule, shorter 

 leaves and longer caudex. Yucca angustifolia is common in Northern 

 Texas ; its caudex scarcely rises above the surface of the ground, and its 

 leaves are more than one-third longer than our species. The fruit of Yucca 

 rupicola of Scheele, is conical, tapering to a sharp point, near which there 

 is sometimes a slight constriction. The fruit of Y. constricta is nearly 

 obtuse at both ends, 1^ 2 inches long and constricted in the middle. 



Jpncace^e. 



Juncus filipendulus, s. nov. Culmo erecto, gracili, 6 12-policari 

 et 1 2-foliato, foliis planis numerosis ad radicem, rhizomate muto-fibrosa, an- 

 thela terminali, fasciculis 6 12-floris, bracteis ovatis, lato-membranaceis, 

 acuminatis vel longe subulatis, perigonii phyllis 6, jequalibus lanceolatisve 

 ovatis, lato-membranaceis, subulatis, trigona obtusaque capsula longioribus, 

 stylo brevissimo, stigmatis 3, fuscis tortis pubescentibus. 



In the western part of Llano County, along streams in dense tufts, with 

 weak, single stems, terminated by 14 subhemispherical heads of flowers, 



[Jan. 



