Transactions of the American Philosophical Society, Volume 7; Volume 13

66 Mean achenia achenium acuminate acute amplexicaule attenuated awns barometer base branches canescently capituli Capitulum Chinese characters ciliate Cochinchina corymb corymbose DECAND deflagrator discal florets disk double star entire equal exserted fastigiate few-flowered filiform five five-toothed flowers function Herschel heterogamous hirsute horizontal intensity imbricated inches high inches long Indian Key involucrum lanceolate language latitude leaves linear length line wide linear-lanceolate London Longitude Magnetic Dip margin membranaceous mercury minute narrow Nearly allied nearly smooth nebula needle nitric oxide north-west NUTT oblong obtuse one-flowered Oregon oscillation ovate paleæ panicle pappus Paris pedicels peduncles petiolate Philadelphia pilose pinnatifid Place of observation plant Plate poles reversed preceding pubescent radical leaves rain rays remarkable right ascension Rocky Mountains scabrous scales scarcely segments sepals serrate sessile short slender snow species specimens stars stations Stigmas summit terminal tion tomentose trifid Upper California villous wind yellow