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* H e l e o g l o c h i n 146 sect, Caricotypi.
(Carex elongata, paniculata, etc.)
Hell ani heae 71 subtrib. Helianthidear.
Sect.: Coreopsideae, Archetypae (gen.
HelianthusJ, Helenieae.
* H e l i a n t h e m o t y p u s 115 sect. Helianthemi.
H e l i a n t h e m u m 115 g. Cistinear. Sect.:
Halimiuin, Tuberaria, Fumana, Helianthemotypus.
^Helianih ideas 71 trib. Trichostigmar.
Subtrib. : Heliantheae, Calenduleae.
H e 1 i a II t h u s 72 g. Helianthear. Archetypar.
* H e l i o s c o p i a 87 sect. Euphorbiae.
Heliotr opi eae 39 trib. ßoraginear. Gen. :
Heliotropium.
H e l i o t r o p i u m 39 g. Heliotropiear.
* H e l i x 13 sect. Caprisalicis.
H ell eh or € ae 129 trib. Rannnculacear. Gen. :
Caltha, Trollius, Erantliis, Helleborns,
Isopyrum, Nigella, Delphinium, Aconitum.
+ H e l l e b o r o t y p u s 129 sect. Hellebori.
H e l l e b o r US 129 Helleborear. Sect.:
Helleborotypus, Api.odilla.
H e 1 m i n t h i a 61 g. Crepidear.
* H e 1 o d i u m 77 g. Cicutear. (— Ilelosciadiwn
Koch.)
* H e l o d i u m 143 sect. Clavulae. fScirpus
acicularis.J
Hemerocallideae 139 fam. Lilifloriae.
Gen.: Hemerocallis.
H e m e r o c a l l i s 139 g. Hemerocallidear.
(fulva.;
H e p a t i c a 127 g. Anemonear.
H e r a cl e u m 83 g. Peucedanear.
H e r m i n i u m 133 g. Ophrydear.
H e r n i a r i a 86 g. Paronychiear.
H e s i o d i a 44 g. Sideritidear.
H e s p e r i s 124 g. Erysimear.
* H e t e r a c h n e 152 sect, Phalaridis. (paradoxa.)
* I I e x a g l o c h i n 141 sect, Trigloehinis.
(maritimum.J
llieracieae 62 subtrib. Lactucear. Gen.:
Prenanthes, Hieracium, Drepania, Arnoseris.
H i e r a c i o i d e s 62 sect. Hieracii. fsabandnm,
nmhcllatiini, etc.j
H i e r a c i o t j ' p u s 62 sect. Hieracii. (pilosella,
praemorsum, etc.j
H i e r a c i u m 62 g. Hieraciear. Sect. : Hieraciotypus,
Hieracioides.
H i e r p c h l o e 153 g. Avenacear.
H i p p i e n 51 subsect. Ericoilae. ('Gentiana
bavarica.;
Hippocastaneae 113 trib. Accrlnear.
Gen.: Aesculus.
H i p p o c r e p i s 102 g. Coronillear,
H i p p o p h a e 26 g. Eleagnear.
H i p p o p h a e s t u m 73 sect. Calcitrapae.
CCent. solstitialis.;
Hippurideae 16 fam. Fructitegmiae.
, Gen. : Hippuris.
H i p p u r i s 16 g. Hippuridear.
H i r c'u l u g 84 sect. Saxifragae,
H i r s c h f e l d i a 123 sect. Sinapios.
H o 1 c u s 153 g. Avenacear.
H o 1 o s t e u m 108 g. Cerastiear.
* H o m a l o p o a (1823; 156 sect. Poae.
('sudetica, compressa.;
H o n k e n y a 86 g. Paronychiear.
Ilordeaceae 161 subtrib. Triticear. Gen.:
Hordeum, Elymus, Gymnostichum.
* H o r d e o t y p u s 161 sect. Hordei. ("hexastichon,
vulgare.;
H o r d e u m 161 g. Hordeacear. Sect. : Hordeotypns,
Zeocriton, Trichostachys.
H o r m i n u m 43 sect. Salviae.
H o 11 o n i a 30 g. Primulear.
H u m u 1 u s 24 g. Cannabinear.
* H u r a g r i a 132 sect. Orchidis. Cincarnata,
latifolia, etc.;
H u t c h i n s i a 118 g. Biscutellear,
* Hyacinth eae 141 trib. Asphodelear.
Gen. : Muscari.
* H y a s 164 sect. Nayadis. ("Caullinia Willd.;
Ilydrocharideae 135 fam. Calicifloriae.
Trib.: Stratioteae, Vallisnerieae.
H y d r o c h a r i s 135 g. Stratiotear.
H y d r o c o t y 1 e 76 g. Hydrocotylear.
11 ydro coty I eae 76 trib. Umbellatar.
Gen.: Hydrocotyle.
* H y d r o l a p a t h u m 17 subsect. Lapathi.
^ H y d r o p h a c e 166 sect. Lemnae. fgibba,
minor, etc.;
* H y d r o p h y 11 a 165 sect. Lemnae.
' * = H y d r o p o a (1823; 158 sect. Glyceriae.
(Poa aquatica L.;
H y o s c y a m u s 38 g. Nicotianear.
H y o s e r i 8 63 g. Scorzonerear.
* H y p e r i c u m 114 g. Hypericinear.
H y p o c h a e l i s 63 g. Scorzonerear. Sect.:
Hypochaerotypus, Porcellites.
* H y p o c h a e r o t y p u s 63 sect. Hypochaeridis.
H y s s o p u s 47 g. Catariear,
I b e r i a 118 g. Biscutellear.