EUPHORBIACEAE 697 
petais wanting ; styles 3, twice 2-cleft, 2-3 mm. long: capsules globose, 4-5 mm. long, 
sometimes surpassed by the accrescent hooded sepals: seeds oval, 3-4 mm. long. 
[n sandy soil, South Carolina, Georgia and Florida. 
16. Croton leucophyllus Muell. Arg. Annual, 3-5 dm. tall, densely white or yel- 
lowish stellate-tomentose, the stem 2—3-dichotomous. Leaf-blades ovate or oblong-ovate, 
2-3.5 em. long, blunt, entire, dark and rough above, pale beneath, rounded at the base : 
etioles as long as the blades or somewhat shorter: racemes 1-2 cm. long, congested ; 
owers monoecious ; staminate short-pedicelled ; sepals 5, oval; petals oblong-spatulate ; 
stamens 8-10 : pistillate flowers few ; sepals 5, the 3 outer oblong, the 2 inner smaller and 
abruptly subulate ; petals wanting; styles 3, 2-cleft, 1-2 mm. long: capsules globular, 
often depressed, 4-5 mm. long, 3 longer than the sepals: seeds oval, 3-4 mm. long. 
In sandy soil, southern Texas. 
17. Croton Lindheimerianus Scheele. Annual, 3-5 dm. tall, greenish pubescent 
throughout, the stem 2-4-chotomous. Leaf-blades oval to ovate, often somewhat rhombic, 
1-3 cm. long, rounded or retuse at the apex, entire or undulate, truncate or cordate at the 
base: petioles mostly about as long as the blades: racemes few-flowered : flowers monoe- 
cious ; staminate short-pedicelled ; sepals 5, ovate; petals 5, spatulate, copiously ciliate ; 
stamens 7-12 ; filaments nearly glabrous: pistillate flowers solitary or 2 or 3 together, at 
the base of the raceme, the long pedicels becoming reflexed ; sepals 5, spatulate to lan- 
ceolate, nearly equal; petals wanting or obsolete ; styles 3, 2-parted, about 3 mm. long: 
capsules oval or ovoid-cylindric, 4-5 mm. long, more or less depressed at both ends, 
usually less than twice as long as the sepals: seeds oblong, 3-4 mm. long. 
On prairies or in sandy soil, Kansas to Texas and Mexico, 
18. Croton monanthógynus Michx. Annual, 3-5 dm. tall, whitish, or sometimes 
rusty stellate-pubescent or becoming papillate, the stem repeatedly 2-4-chotomous. Leaf- 
blades various, those of the lower leaves suborbicular on long petioles, those of the upper 
leaves ovate or oblong-ovate, 1-4 cm. long, or slightly longer, usually mucronate, entire, 
on petioles about 3 their length: racemes about 1 em. long: flowers monoecious ; stam- 
inate short-pedicelled ; sepals 3-5, ovate ; petals spatulate, ciliate ; stamens 3 to 10: 
pistillate flowers 1-4 below the staminate, reflex at maturity ; sepals 5, oblong ; petals 
obsolete ; ovary 2-celled : capsules ovoid or oval, 3-4 mm. long: seed solitary by the abor- 
tion of one ovule, 2.5-3.5 mm. long. 
In rocky soil and waste places, Iowa to Illinois, Georgia, Texas and Mexico. 
. 19. Croton corymbulósus Engelm. Shrubby, silvery throughout, with several 
stems, simple below, more or less corymbose above. Leaf-blades oval to broadly oblong or 
suborbicular, 2-4.5 cm. long, mostly mucronate, entire, more loosely pubescent beneath 
than above, rounded at the base : petioles mostly J as long as the blades: racemes becom- 
ing quite loose: flowers monoecious or frequently dioecious ; staminate relatively long- 
pedicelled ; sepals 5, oblong, blunt; petals spatulate, densely ciliate; stamens 6-18: 
filaments pubescent below, much exserted : pistillate flowers on much longer pedicels 
than the staminate and at length recurved ; sepals 5-6 ; petals wanting or mere subulate 
rudiments ; styles 3, 2-parted, 3-8 mm. long: capsules oval or oblong, 4-7 mm. long, 
usually 3 longer than the sepals : seeds oblong, 3-5 mm. long. 
In sandy soil, Texas to Arizona and Mexico. 
., 20. Croton punctatus Jacq. Perennial, 5-10 dm. tall, the stem 2-3-chotomous, 
like the branches gray or rusty tomentose. Leaf-blades elliptic, oblong or ovate, 1-5 cm. 
long, entire or merely undulate, truncate or cordate at the base, pale or whitish through- 
out, Hassan above, densely scaly-tomentose beneath: petioles 4 as long as the blades 
or shorter above: racemes few-flowered : flowers monoecious or dioecious ; staminate in 
racemes 1-2 cm. long, short-pedicelled ; sepals 5-6, triangular, nearly equal ; petals want- 
ing or rudimentary ; stamens normally 12, barely exserted ; filaments Subst: pistillate 
flowers 1-3 in a raceme; sepals 5, equal, oblong or cuneate; petals wanting ; ovary 3- 
celled : capsules subglobose, more or less depressed, 5-8 mm. long, seated in the unchanged 
calyx : seeds about 6 mm. long. [C. maritimus Walt.] 
BREL ad epi soil along sea shores, North Carolina to Florida, Texas and Mexico. Also in 
21. Croton Neo-Mexicànus Muell. Arg. Shrubby, 3-16 dm. tall, with several 
erect dichotomous stems from a woody base, silvery throughout, ped d the upper leat-sur- 
faces. Leaf-blades narrowl oblong, lanceolate, or elliptic, 1-4 cm. long, entire, green or 
; fae ias above, short-petioled: racemes 4-8 cm. long, or the pistillate shorter: flowers 
loecious ; staminate often numerous, short-pedicelled ; sepals 5, lanceolate, equal, relatively 
thin ; petals wanting; stamens 10-12; filaments pubescent : pistillate flowers 2-several, or 
