OF ARTS AND SCIENCES. 373 



nearly nerveless leaves. Flowers small, solitary iu the axils, or the 

 axillary peduncles 1-2-flowered. 



T. Engeljianni. a much branched shrub, with smooth gray bark, 

 glabrous throughout: leaves mostly opposite or approximately so, 

 sometimes scattered or verticillate in threes, linear, acutish, nerveless 

 excepting the rather obscure midvein, ^ to 1 inch long, on a very short 

 slender petiole: stamiuate inflorescence shorter than the leaves, the 

 slender small-bracteate peduncles usually 2-flowered, reddish; calyx 

 half a line broad, the slender reddish fdaments becoming 2 lines long: 

 pistillate flowers solitary, the stout naked pedicel 3 or 4 lines long in 

 fruit ; one or two sepals usually persistent at base of the fruit, 2 lines 

 long: capsule 3 lines in diameter: seeds usually solitary, smooth and 

 shining. — Collected at St. Thomas, Lower California, by Parry, in 

 February, 1883, with immature fruit, and by C. R. Orcutt in Septem- 

 ber, 1884, with stamiuate flowers and mature fruit. Specimens from 

 the first collection of this plant were sent to Dr. Engelmann, and 

 probably his last botanical work was iu their examination. His notes 

 and sketches have not been accessible to me, but the genus is evidently 

 a new one, of the Euphorbiaceous tribe PhyllanthecE, and is not nearly 

 allied to any other of the North American flora. 



AcALYPiiA Pringlei. Sutfrutcsceut at base, with elongated slen- 

 der decumbent bi'anches, glandular-pubescent throughout : leaves 

 broadly ovate, or often cordate with a broad shallow sinus, subcre- 

 nately dentate, the blade 9 to 18 lines long, somewhat longer than the 

 petiole : male spikes cylindrical, slender, axillary, with occasionally 

 one or two female flowers on the peduncle, or very rarely at the apex ; 

 female spikes terminal and axillary, short and few-flowered and shortly 

 pedunculate: bracts 1-flowered, reniform, with 7 to 11 nearly equal 

 short acutish teeth : stigmas 2 lines long, pinnately divided. — Northern 

 Sonora, C. G. Pringle, 1884. It much resembles 34 Schaffner {A. 

 vagans, var. glandulosa, Muell.), and 824 of Parry & Palmer {A. mollis, 

 HBK., fide Hemsley, but not according to the characters given to that 

 species), both from near San Luis Potosi, and both numbers including 

 two perhaps distinct forms. Their more evident differences from the 

 present species are found in the ov^ate-cordate leaves with a very nar- 

 row sinus, the conspicuously gland-tipped hairs of the pubescence, and 

 the fewer teeth of the bracts. Other differences are found in the 

 flowers, etc. A straggling shrub, 2 or 3 feet high, found on the shore 

 of the Gulf of California, 150 miles south of the boundary, 



Croton Pringlei. A woody perennial, 3 to 6 feet high, with 

 slender branches canescent when young ; pubescence stellate : leaves 



