EE ee ee — = 
? eT ee ae 
* 
BORAGINACEX 475 
II Ovary 4-parted ( rarely 2-parted ) from above into 1-celled 
1-ovuled divisions surrounding the style: Stigma not annular, 
terminal. Nutlets attached toa central depressed or elevated 
disk receptacle or axis called the gynobase. 
TriBe ut Mostly herbs with entire leaves. Flowers chiefly 
near but not in the axils of bracts or leaves or bractless, in scorpi- 
oid spikes or racemes. pape 
* Corolla and stamens regular: style entire or sometimes barely 
2-cleft at the apex. 
+ Ovary 4-parted or 4 lobed: fruit of 4 nutlets or by abortion fewer, 
subtended or surrounded by the unchanged or merely accrescent calyx. 
7 = Nutlets divergent or divaricate. 
8 Pectocarya Small annuals with minute white flowers: nutlets flat and 
thin, attached at the inner end underneath to a small depressed 
gynobase. 
4 Cynoglossum Stout perennial or biennial herbs with blue flowers in 
bractless racemes: nutlets equally divergent, horizontal or obliquely 
ascending on a depressed or pyramidal gynobase. 
++ ++ Nutlets erect and parallel with the style or sometimes incurved. 
= Nutlets attached obliquely by more or less of the ventral face or 
- angle or by the base or prolongation of it to the more or less elevated 
gynobase, not stipitate and the scar not excavated. 
a Nutlets.armed with glochidiate prickles, forming burs. 
6 Lappula Annual or perennial herbs: corolla short-salverform or some- 
what funnelform, blue or white; the throat closed with prominent 
fornicate appendages. 
b Nutlets very variable, from nearly smooth to glochidiate. 
6 Eritrichium Nutlets obliquely ascending, with depressed or truncate- 
complanate back bordered by an acute margin or at length revolute, 
entire or dentate or spinulose wing. 
7? Allocarya Mostly annuals with opposite leaves and white flowers: 
pedicels turbinate-thickened and more or less 5-angled, persistent: 
corolla salverform. 
c Nutlets unarmed. 
8 Piptocalyx Small annuals with alternate or scattered leaves and small 
white flowers on very short persistent pedicels: calyx circumscissile 
near the middle. the upper part soon falling away: nutlets straight, 
attached for nearly their whole length to a subulate gynobase. ' 
9 Eremocarya Hirsute-canescent small annuals with most of the leaves 
in a radical tuft and small white flowers on persistent pedicels in gem- 
_ inate racemes; the root giving a deep purple stain. 
10 Plagiobothrys Annual herbs with most of the leaves in rosulate 
radical tufts and small flowers'on slender persistent pedicels: nutlets 
more or less incurved, attached in the middle of the concave ventral 
face to a globular gynobase. 
11 Oreocarya Stout perennial or biennial herbs with scattered leaves 
and comparatively large flowers on filiform persistent pedicels: nutlets 
attached by the inner angle to a slender gynobase. 
