high] 



tEfyz BxiMuty of 23fltang, 



590 



HIGH WATER SHRUB. An American 

 name for Iva. 



HILIPER. Bearing a hilum upon its 

 surface. 



HILLIA. The memory of Sir John 

 Hill, a writer on various branches of 

 botany, is held in little respect in this 

 country, owing to some unseemly disputes 

 with some of his contemporaries and with 

 the Royal Society; nevertheless a genus 

 of plants has been named in his honour, 

 consisting of small tropical American 

 shrubs reported to grow upon the trunks 

 of trees, and belonging to the Cinchonacece. 

 They have somewhat fleshy leaves ; an 

 involucre of three or four bracts outside 

 the calyx, the limb of which is divided 

 into two to four narrow segments ; a 

 salver-shaped corolla, with a long tube, 

 distended at the throat, and concealing 

 four to six sessile anthers ; a thread-like 

 style, and thick stigma. The fruit is a 

 long pod-like two-celted two-valved cap- 

 sule, with numerous seeds which are pro- 

 vided with a loose integument prolonged 

 at one end into a long brush-like appen- 

 dage, pi. T. M.] 



HiLUM. The scar produced by the 

 separation of a seed from its placenta. 

 Also used to indicate any point of attach- 

 ment ; and the apertures in the extine of 

 pollen grains. 



HIMANTHALIA. A genus of olive- 



spored Algai, remarkable for the large 



immensely elongated forked receptacles, 



and the little cup-shaped frond which 



scarcely exceeds an inch in diameter. The 



plant is common on some parts of our 



const, Chough rather local. The fronds 



when young sometimes become detached 



and form little bladders which make a 



loud report when trod upon. The only 



species, //. lorea, is known by the name of 



Sea-thongs from the strap-like appearance 



! of the receptacles. The plant is biennial, 



| the receptacle not being produced till the 



J second year. It extends southward as far 



I as Spain, but prefers rather cold waters. 



I It is very rare, if found at all, on the coast 



I of America, [M. J. B.] 



HIMATANTHUS. A Brazilian tree, con- 

 stituting a genus of Cinchonacece. Its 

 flowers are arranged in spikes which are 

 covered by a large spathe-like bract, falling 

 off before the flowers expand. The parts 

 of the flower are arranged in fives ; the 

 corolla is very long and funnel-shaped, 

 concealing within it the stamens; the 

 style is somewhat club-shaped; and the 

 ovary has two compartments. The fruit is 

 unknown. [M. T. M.] 



HIMERANTHUS. A genus of Solanaceo?. 

 The flowers are placed singly on long 

 stalks, and have a bell-shaped corolla, to 

 the base of which, internally, the stamens 

 with strap-shaped filaments are attached. 

 The ovary is two-celled, the fruit fleshy, 

 many-seeded, supported by the persistent 

 calyx. It is found in Uruguay; and it is 

 singular that a plant so nearly allied to 



the true mandrake should be supposed by 

 [ the natives of that country to possess the 

 same power of exciting the passions as 

 was attributed to the mandrake, in Greece 

 &c, by the ancients, and even by mediasval 

 | writers. pi. T. M.] 



HINA. The Pacific Island name for a 

 Gourd. 



HINAU, or HINO. Elceocarpus Hhiau, 

 the bark of which is used for dyeing in 

 New Zealand. 



HINDA. An Indian name for the Wild 

 Date, Phoenix sylvestris. 



HINDBERRT. Ruous Idceus. 



HINDHEAL. Clienopodium Botrys. 



HINDSIA. A genus of cinchonaceous 

 shrubs, natives of Brazil. The flowers 



I have a calyx with unequal linear segments, 

 sometimes dilated in a leaf-like manner ; a 



j funnel-shaped corolla with a long tube, 



I somewhat dilated at the upper part; an- 

 thers on very short stalks at the top of the 

 tube of the corolla ; and a style divided 

 at its upper part into two loner linear com- 



j pressed hairy branches. The capsule 

 bursts by two valves, and contains nu- 

 merous seeds. H. violacea is a stove plant 

 of great beauty, with large deep blue 

 flowers. pi. T. MJ 



HING. The Indian name for Asafcetida. 



HINOID. When veins proceed entirely 

 from the midrib of a leaf, and are parallel 

 ! and undivided ; as in ginger-worts. 



HIP-TREE. Rosa canina, the fruits of 

 which are called Hips. 



J HIPWORT. Cotyledon Umbilicus. 



\ HIPPEASTRUM. The Knight's Star 

 ; Lily, a genus of Amaryllidacece, consisting 

 of South American and West Indian bulbs, 

 remarkable for their showy flowers, and 

 comprising most of the plants cultivated 

 in hothouses under the name of Amaryllis, 

 these being for the most part hybrids,which 

 are very freely produced in the genus. The 

 leaves, which are vernal, are bifarious.and 

 I precede or accompany the flowers ; the 

 : latter usually grow several together at the 

 top of a hollow scape, and are large and in 

 most cases very handsome, the somewhat 

 funnel-shaped declinate perianth having 

 : an abbreviated and narrow-mouthed tube 

 with the faucial membrane deficient on the 

 ! lower side ; and a very irregular limb, the 

 upper sepaline being wider, and the lower 

 petaiine narrower than the other seg- 

 ments. The filaments are declinate, curved, 

 unequal, and unequally inserted into the 

 throat ; and the style is three-lobed or 

 three-cleft. The flowers of some of the 

 species, as aulicum, equestre, and regium, are 

 crimson, scarlet, or orange-red, with agreen 

 star; of vittatum white striped with red; 

 and of reticulatum purplish-red, beautifully 

 veined with deeper red, and with a white 

 central star. [T. M.] 



HIPPIA. A genus of South African 



