ROSE FAMILY. 205 
17. Rubus Canadénsis L. Low Running 
Blackberry. Dewberry. 
(Fig. 1906. ) 
Rubus Canadensis I, Sp. Pl. 494. 1753. 
mS 
Trailing, shrubby, stem often several feet long, 
armed with-scattered prickles or nearly naked. 
<2 Branches erect or ascending, 4/-12’ long, more or 
= less pubescent, sometimes prickly, sometimes 
slightly glandular; leaves petioled, 3-7-foliolate; 
leaflets ovate, oval or ovate-lanceolate, thin, decid- 
uous, acute or sometimes obtusish at the apex, 
rounded or narrowed at the base, sharply dentate- 
serrate, usually sparingly pubescent; flowers termi- 
= nal, few and racemose, or sometimes solitary, white, 
about 1’ broad; peduncles leafy; sepals shorter than 
or exceeding the petals; fruit black, delicious, often 
1’ long, less firmly attached to the receptacle than 
ns in R. villosus. 
In dry soil, Newfoundland and Ontario to Lake 
z Superior, south to Virginia, Louisiana and the Indian 
SS Territory. April-May. Fruit ripe June-July. 
Rubus Canadensis invisus Bailey, Am. Gard, 12:83. 1891. 
Stem stouter than that of the type, often partly ascending; leaflets larger, sometimes 3’ long 
and 2' wide, coarsely dentate with pointed teeth; peduncles elongated, erect; flower-buds conspi- 
cuously tipped by the connivent ends of the sepals. Central and western New York. ‘The Bartell 
and Mammoth Dewberries of cultivation. 2 
Rubus Canadénsis roribaccus Bailey, Am. Gard. 11: 642. 1890. 
Leaflets very large, doubly serrate, incised or lobed; flowers often 2’ wide; sepals large and 
often lobed; fruit larger than that of the type. The Lucretia Dewberry of cultivation. Western 
New Jersey to Virginia and West Virginia. 
6. DALIBARDA L.. Spa bivaor, 0753 
A low tufted perennial downy-pubescent herb, with simple long-petioled ovate-orbicular 
cordate and crenate leaves, and scape-like peduncles bearing 1 or 2 white flowers. Calyx 
deeply 5-6-parted, its divisions somewhat unequal, the 3 larger ones commonly toothed. 
Petals 5, sessile, soon deciduous. Stamens numerous. Pistils 5-10; style terminal. 
Drupelets 5-10, nearly dry, enclosed at length in the connivent calyx-segments. [Named in 
honor of Thos. Fran. Dalibard, a French botanist of the 18th century. ] 
A monotypic genus of northeastern North America. 
1. Dalibarda répens IL. Dalibarda. 
(Fig. 1907.) 
Dalibarda repens I,. Sp. Pl. 491. 1753. 
Rubus Dalibarda I,. Sp. Pl. Ed. 2, 708. 1762. 
Dalibarda violaeoides Michx. F1. Bor. Am. 1: 299. 
1803. 
Stems slender, unarmed, much tufted, several 
inches long. Leaves pubescent on both sides, 
9/’-2’ in diameter, the crenations low, obtuse 
or sometimes mucronulate; stipules setaceous; 
flowers 4//-5’’ broad; peduncles slender, 14/-5/ 
long; achenes oblong, pointed, slightly curved, 
minutely roughened, 2/’ long, rather more 
than 34’ in thickness. 
In woods, Nova Scotia to Minnesota, south to 
Pennsylvania, southern New Jersey, Ohio and 
Michigan. Plant resembling a low violet, and 
commonly bearing cleistogamous flowers. June-— 
Sept. 
