INDEX TO THE ORDERS & GENERA, 
AND EXPLANATION OF GENERIC NAMES. 
Abu'tilon ; Gr. for mulberry tree ... 
Acacia ; Gr. ak azo, to sharpen, hence thorny a as some of the 
earlier known species. Wattle ie “af nee: aos 
Ace’na; Gr. akaina, a thorn : 
Acantha’ cee ; from ‘Acan’ thus, a pr ickle .. 
Achnoph’ ora; Gr. achne, chaff ; phoros, car rrying 
Achyran ‘thes ; Gr. achuron, chaff ; anthos, a flower 
Acian’‘thus; Gr. akis, a point ; anthos, flower .. 
Acrot’riche: Gr. akros, summit ; thrix be trichos ), hair ; > tips of 
corolla-lobes bearded 
Actino’tus; Gr. akti’nos, of a ray; “otus, ear; rayed involucrum 
Adenan’ woe ; Gr. aden, a gland ; and anthos, a flower 
Adian‘tum ; Gr. adi iantos, hot w ‘etted, supposed to keep dry 
when immersed. Maiden-hair en or 
Adria‘na ; after Adrien de Jussieu, the eminent botanist 
Aischynom’ene ; Gr. aischunomat, to be modest ; some species 
sensitive aise a i oe , 
Agropy ron ; Gr. agros, a field ; puros, wheat 
Agrostis; Gr. name for grasses 
Aira; Gr. for a weed in wheat, 
Aizo’on; Gr. aei, always; zoos, alive : 
Ajuga; Gr. a, without ; zygos, a yoke; calyx regular.. 
Alisma’ cee ; from Alis’‘ma, Water Plaintain 
Alopecu’ rus; Gr. fox-tail (grass) : 
Alternan’ thera; stamens alternating with (staminodia) 
Alys’sum; Gr. a, without; lyssa, rage; in reference to the 
supposed properties of allaying anger 
Alyx’ia; Gr. alukos, salty; grows by the sea 
Amaranta’‘cee; from Amaran‘tus, not decaying ... 
Amaryllid'’ee ; from Amaryl'lis, the daffodil 
Ammawn‘nia ; after a botanical professor at St. Petersburg 
Amper’ea ; after Ampere, the distinguished mathematician 
** darnel ” 
Amphipo’gon ; Gr. amphi, around; pogon, a beard 
Andropo’gon; Gr. andros, man’s; pogon, a beard 
Angian’'thus; Gr. ang ggeion, a cup, and a flower (actually : a 
pappus) dst ee Se som 
Anthistivria ; Gr. for a "species of grass 
Anthob‘olus ; ; Gr., garlanded with flowers 
Anthocer’cis ; Gr. anthos, a flower ; kerkis, a ray 
Anthot’roche; Gr. anthos ; and trochos, a wheel 
Ao‘tus ; a, without; ofos, of an ear, z.e. bracteole 
109, ue 
53, 5d 
161, 165. 
148 
102 
81 
200, 202 
38, 41 
59, 66. 
189, 196 
188, 194 
188, 195 
<. e 
149, 150 
ll, 
188, 195 
187, 191 
112, 128 
sis 
