43 ° 
HYPERICUM 
parison with other Guttiferae however shows that in H. we have 
more probably to do with a union of originally free sta. (see Nat . 
PJl ., or Pax, Morphol. p. -238). The firs, contain no honey, but offer 
abundant pollen to insects, and the larger-flowered sp. are frequently 
visited. They are homogamous, but the stigmas stick out through 
the sta. and there is thus a chance of a cross when insects alight on 
the petals. 
Hyphaene Gaertn. Palmae (it. 3). 9 sp. trop. Afr. The stem is 
frequently branched, a rare occurrence in Palms. 
Hypochoeris Linn. Compositae (xm). 50 sp. N. temp, and S. Am. 
(3 in Brit.). 
Hypoderris Br. Polypodiaceae. 1 sp. W. Ind. 
Hypoestes Soland. Acanthaceae (iv. B). 85 sp. trop. Old World, 
esp. Madag. 
Hypolepis Bernh. Polypodiaceae. 12 sp. trop. and S. temp. 1 in Calif. 
Hypopitys Dill, ex Adans. = Monotropa Linn. 
Hypoxis Linn. Amaryllidaceae (ill). 50 sp. S. Afr. 
Eyptis Jacq. Labiatae (vn). 250 sp. trop., chiefly Am. 
Hyssopus (Toum.) Linn. Labiatae (vi. 11). 1 sp. Eur., Medit., As., 
H ' officinalis L., the hyssop, formerly used in medicine. 
Hysterophyta (Warming). The last cohort of Choripetalae (p. 137). 
Iberis Dill, ex Linn. Cruciferae (11. 6). 30 sp. Eur., As. /. amara L. 
is the candytuft. The outer petals of the firs, of the corymb are 
longer than the rest, thus adding to the conspicuousness of the whole 
(cf. Umbelliferae). 
Icacinaceae. Dicotyledons (Archichl. Sapindales). 38 gen. with 200 
sp., trop. Trees and shrubs (often lianes) or rarely herbs, with. alt. 
exstip. leaves, usually entire and often leathery. Firs, in compound 
panicled infl., regular, usually $ . K (5) or (4), not enlarged when the 
fruit is ripe; C 5 or 4, rarely united, valvate or imbricate; A 5 or 4, 
alt. with petals, with usually introrse anthers; disc rarely developed; 
G (3) or rarely (5) or (2), rarely multi-loc., usually i-loc. by abortion 
of the remaining cavities. Ovules 2 per loc., pendulous from its 
apex, anatropous, with dorsal raphe and micropyle facing upwards; 
funicle usually thickened above the micropyle. Style simple with 
3 stigmas (or 5 — 2). Fruit i-loc., i-seeded, usually a drupe, some- 
times a samara. Endosperm usually present; embryo straight or 
curved. Chief genera : Lasianthera, Phytocrene. [This order was 
formerly sunk in Olacaceae ( e.g . by Benth.- Hooker), but differs in 
several points ; the placenta is never free, the fir. has only one whorl 
of sta., &c. It is placed in Terebinthinae by Warming.] 
Idesia Maxim. Flacourtiaceae. 1 sp. China, Japan. [Bixineae, 
Benth.-Hooker.] 
Ilex (Tourn.) Linn. Aquifoliaceae. 170 sp. Cent, and S. Am., As., 
Afr., Austr., Eur. I. Aquifolium L., the holly, in Brit. Firs, 
dioecious, but in the ? fir. the sterile sta. are so large that the fir. 
