326 PITTONIA. 
2. B.srEcrosuM. Foliage much as in the last but smaller : 
the racemes nearly naked, the bracts subtending the ped- 
icels much reduced and narrow; the rachis of the raceme 
and also the pedicels slender and pubescent.—Shrub said to 
be of only half the size of B. arboreum; remarkably distinct 
by its nearly naked and quite showy racemes. It is known 
only from low sandy soils in Florida. Mr. Nash'sn.81,as . 
to my set of his Florida plants, well represents the species. 
3. B. arAvcESCENS. Leaves glaucous on both faces, the 
perfectly entire margin ciliolate: racemes short and with 
` bracts as large and leaf-like as in the typical speci: corol- 
las one-third smaller and globose Species 
known to me only from the Indian Territory, where it was 
collected in May, 1895, by Mr. B. F. Bush. 
New SPECIES oF CONVOLVULUS. 
C. MALACOPHYLLUS. Calystegia villosa, Kell. Proc. Calif. 
Acad. v. 17 (1873). Convolvulus villosus, Gray, Proc. Am. 
Acad. xi. 90 (1876), not of Persoon, Syn.i.177(1805) Stems 
herbaceous, from fleshy slender rhizomes, a foot long more 
or less, ascending or trailing, seldom or never twining, very 
hoary with a dense velvety or plushy pubescence: leaves 
triangular-hastate, as broad as long, the broad basal lobes 
often coarsely toothed, flowers short-peduncled : pair of oval 
leafy bracts concealing the calyx, inserted close to its base ; 
sepals unequal, the outer ones villous throughout; corolla 
short, the expanded limb 1 inch broad or more, creamy- 
white. 
Common in woods of the middle Sierra Nevada of Califor- 
nia, flowering in summer. 
C. cottinus. C. villosus, Greene, Man. 265, in part, as also 
in part of Gray, Syn. Fl. Herbaceous like the last, and with 
