962 McGrecor: NEW SEED-PLANTS FROM LAKE TAHOE REGION 
original species. The result is that a sort of ‘‘ Apocynal chaos” 
obtains, such as we find existing in only too many of the so-called 
“tough groups.” <A serious treatment of the genus should be 
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FicurE 1. Apocynum bicolor McGregor ; a, calyx, < 6; 4, corolla, 6 ; ¢, corolla 
lobes laid open, < 6; d, corolla tube laid open, exposing stamens and appendages, 
6; e, anther (outer view) to show basal lobes, X 9; /, pistil, showing stigma lobes 
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attempted, which I think might result in the reduction of several 
present-day species. The plant described above cannot be referred 
to any recognized species, and as its characters are fully as dis- 
tinctive as those of any of the genus, I have felt justified in pro- 
posing it as the type of a new species. 
Lappula Jessicae sp. nov. 
Erect, simple to near the top, 5-7 dm. high, with short hirsute 
pubescence throughout, which is mostly spreading on the stems 
and petioles but appressed on the blades and inflorescence: leaves 
all entire and all surpassing the internodes, the blade always 
longer than the petiole ; lower leaves oblong-oblanceolate, acutish 
or obtuse, gradually attenuate to the narrow-margined petioles, 
the largest 18 cm. long by 2.25 cm. wide; cauline leaves becoming 
sessile and broadly oblong-lanceolate and reduced above, even 
those of the inflorescence, however, quite ample and ovate-acumi- 
nate: inflorescence usually paniculately disposed but often quite 
flat-topped ; peduncles simple, flowering to near the base, or more 
often once forked near the top, in which case the flowers are en- 
tirely restricted to these branchlets; pedicels at least equaling the 
calyx and recurved in fruit: calyx split nearly to the base, the 
