HKMIPTERA. 



given iBtemaily. it aet* as u irritant to tl,c intestinal 

 iii*j voaaiUnc and purging. 

 . Jf***ri JMfra ; LindUy. ttora Jfaf.V.) 

 HI.NTH1A. a jrn. of PUnU Ulocfing to the natural order 

 tV/**r. to UM fab-order CkAeraanr, and the Motion Se* Minna. 

 It U* Ik. pfayUarU* in on* row. MIU), with equal ubuUt adpraewd 

 ana* at UM UM, ud surrounded I 7 35 Wlike looee brmcU; the 



rraptade JoHd ; UM fruit oompretain 1 , tranrveratly rugo*r, rounded 

 al UM end, and wiUi a lender U-ak longer than itaelf ; pappus in 



feaUwry. There i* but on* specie* inhabiting Great 

 IVtUia. //. rJl wu /<, the Ox-Tongue. It U plant from S to 8 feet 

 la kwtjBt ; UM branch**, stem, leaves, and involucre an covered with 

 etrotsj prickle* pringhif from white tubercle*, and with 3 minutx 

 hook* a* UM apex. It u f 



aitd 

 IIKt.yiST 



I on dry bank* ; and blosaom* in July, 

 (Bablngton. MamtuJ of Brituk Botany.) 

 oOORTOJf. (AuuO 

 [KM*] 



IIKLnXIAS, a genus of Plant* belonging to the natural order 

 itiUmlltftt*. It ha* a 6-parted perianth ; legnienU narrow, rather 

 oeqail, obtuse, not striated or herbaceous, nor imbricating ; itameni 

 . baiartil into the hue of the segment*, uneqnal ; filament) subu- 

 late ; anther* rcniform, with confluent cclU ; capnile wparating into 

 aeeds compreamd, winged at the apex, or 



aped**) of tail genus contain vcralria. The //. ofciaalit of 

 Dun, it U well known, baa bean employed for obtaining this substance. 

 Thj* phot differ* from lltloxiat, and Dr. I.in.ll.-y hu descril* .1 it 

 under UM name of Ataynra tffinalu. 



DOOM* of /Mom** used medicinal! 



[CEBADII.I.A.] 

 follow* : 



The other 



ecle* of a*o*t*t ueed medicinally are u follow* : 



ff. frigid* ( Vtntnm frimj**, Schlectendal). It U found in the 



pine ration of Mount OvLtaba in Mexico. It u a poisonous plant, 



and called SaToeja by the Mexican". 



//. nytlntprrma U a native of the United States in moist situation*, 

 on rirer bank*, and high mountains. It u uied in the southern states 

 of America for destroying flies. 



II. ottewo, UnicornVHorn and Devil's-Bit of the Americana. It is 

 bond in wet meadow* and bogs, and in hilly and mountainous regions 

 in UM United State*. It U bitter, and U used aa an anthelmintic 

 and took. 



ll.indl.-y. Flora Mcliea.) 



HKLOTID.* (Leach), a family of Coleopterous Insect* of the 

 section lldtromtra and sub section Slradylra. Distinguishing charac- 

 tersHead abort, obtuaely terminated anteriorly; mandibles notched 

 at the apex; antennas placed near the eya, generally filiform, or 

 early ao, or alightly thickened at the apex, where the joint* are short ; 

 UM basal joint of the antenna hidden above by a projected margin 

 of the bead ; the third joint long ; terminal joint of the maxillary 

 palpi Urge and ecuriform ; eye* emarginated anteriorly ; legs modo- 

 raU ; the penultimate joint of the tarsi generally simple or but slightly 

 M; claws simple; body usually convex, and of an oval 



The larvn of these insect* live in rotten wood, upon which they 

 feed; they are of a cylindrical form, hard to the touch, and have six 

 small leg*, attach.-!, two to each of the thoracic segment*. The 

 perfect hmxrts are, like the larva, also found in rotten wood, or under 

 UM bark of tree* ; they are rather slow in their movements, and 

 generally adorned with metallic colour*. 



In UM gmu* l/elopi. a* it is now restricted, the joint* of the antenna 

 are MOMwhat compressed ; the two basal joint* are abort, the third U 

 loaf; UM two or three terminal joint* are short and oboonic, the 

 I*** joint U the shortest ; the intermediate joint* are moderately long 

 f*!.?? 1 * cylindrical. The thorax approachei to a square form, or 



abundant in various part* of Eng- 

 ie*. than half 



//. nraiesetts, an insect very abundant in various 

 *Md. wffl aflbrd an example of thi. gctms. It is rather 

 * . " * n oral form and deep brown colour, bavins 

 a brou* cloa* certain light*; the upper surface of the body is 



Mwl *wi mrmm l._ ^tn_ . f *!._ ^1_A_ rri . 



9 -- J -~ ' FIT "" v vuv 1WU MM 



so are UM atria of the elytra. This insect is 

 UM bark of tree*, near the root 

 U aooUM. > tpaci*. of thu gentu. which i* common 

 TU * ta ^* U ""^y U>r*^uarter. of 

 T tl >t ' Mlw oolour - ! * U t***9 found 

 . The larva U cylindrical in form, of a 

 *"" *" oor, and haa two recurved hook* on the terminal 

 t off UM body. 



of sixty apMiwof UM genus Htlvft are enumerated in 

 and UMH an chiefly confined to Europe and North 



HKLOP& [IlKLonnx] 



IIKUW- 'I A I , I . ' M. a of riaote belonging to the natural order 

 "'< * to UM tribe Ammi~* It haai calyx of 5 teeth or 

 UM petal* ovate, entire, with a itraigfat or incurved apiculus; 



wHfc UM GSaTlAaaely aerrate; //. 

 the Uaiet* roaads.li ovate, .initially and acutely i 



entire. There 



with 

 inciao^errate ; 



and //. iMmif/a/HM, with the leaflet* of the lower leaves divid, 

 i-ui.i1l.iry segment*. The first i* a native of brook* and ditches, and 

 U frequently mistaken for the water-creas. [Situ.] The second is a 

 rar plant in Great Britain. The last species is found in ponds. 



(lUbington, Man mil of llritiih Botany.) 



HELVELLAI i:.i: d.indley), a natural order of PUnte bel 

 to the Fwtyaltj, and equivalent to Berkeley's order Aicomycelu. 

 genera included in it arc embraced in Fries' cohort llymenonyctta. 

 (Frxiii; HTMKXOUYCKTKS.] 



1IKI.VIN', a crj-sUlliwu Mineral of which the primary form i* a 

 .i:!.,-. Cleavage parallel to the planes of the regular octoh. 

 in.li.-tinct Fracture uneven. Hardness 6'0 to 8-5 ; scratches glass. 

 ( '..Inur, pale-wax and greenish-yellow. Streak white. Lustre re- 

 vitreo-resinou* ; translucent; transparent on the edge- 

 gravity, 3'1 Cfl. It is found at Schwarzcnburg in Saxony. 



Before the blow-pipe or charcoal it melts i^nco into a 



globule of the some colour as the mineral ; in the oxidiniiu; l!a> 

 colour become* deeper and the fusion is more difficult ; with )>orax it 

 .yields a transparent glass often coloured by nmngnuese. Analyuifl by 

 < "Uielin : 



Silica 35-272 



(Jlucina ' 8-020 



Alumina and Gluciim 

 Protoxide of Maugmienc 

 Prqtoxide of Iron 

 Sulphuret of Manganese 

 Loss by calcination 



1-445 



14-000 

 1-155 





HKLWINGIACE.-E, Ifrivingiatlt, an order of Diclinous Kxo- 

 Plant!', reprusented by one specieg //' 'n-iiii/in llutcijlora. This plant 

 is a native of Japan, where its young leaves are eaten. It u a shrub 

 with alternate stipulate leaves, and fascicled flowers. Decaisne, 

 who first constituted the order, regarded it an allied to Ham 

 dttcea. But its minute embryo and unisexual flowers remove it for 

 from this order, whilst its inferior fruit and seed bring it near to Oar- 

 ryacea. It has an indirect affinity also with Santaiacete. (LimUey, 

 tlilt Kingdom.) 



IIKMATITE. [HEMATITE.] 



HEMERIPUS. [KLATERID.B.J 



HEMKUO'I'.IUS, a genus of Insects of the order Ncuroplera and 

 section Planipennu. The genus, aa established by Linnicu.i, has 

 been dismembered by subsequent entomologists, ami in 

 valent to a family distinguished by the filiform antenna; and by tho 

 number (four) of the palpi of the insects included in it. They have 

 soft slender bodies, much exceeded in length by the huge retin 

 wings, which, when the animal is at rest, are deflexed. Thti: 

 are globular and vividly metallic. The larva: ore ferocious in habit, 

 and prey upon plant-lice, seizing them with their powerful jaws and 

 sucking their prey to death. When full grown, they spin and envelop 

 themselves in a silken cocoon. The eggs of Ilemcrobii are deposited 

 on plants, and are pendunculated, so as to resemble fungi, for wliicli they 

 have sometimes been mistaken. These insects range from Europe to 

 Australia, and there are many species natives of the BritUh Isles. 



HF.MEROCALLIS, a genus of Plants belonging to the natural 

 order IMiticco. It ha* a campanulate corolla, seated on a cylindrical 

 tube ; the stamens are bent down; the capsule is 3-edged ; the root is 

 composed of thick fibres; the leaves are scattered, linear; the flower* 

 are large, yellow or yellow-brown. The species are called Day-Ulic*. 

 //. jtara is a native of Germany, and //. fulra of Italy, s \. r ! 

 species are cultivated in our gardens, as H. disticha from Chiuru //. 

 Siebotilii from Japan, //. tpeciota, and //. yraminta. 



II KMICAUDIUM. [C'ONCHACEA.] 



II KMK'I DAHIS, a genus of FOSKI! Echinodermata, from the Oolite. 



HKMICYCLO'STOMA, M. De Blainville's name for tho fourth 

 family of hi* order Aiipkonobranclriala, the latter being the necond 

 order of the first sub-class (Pamctpkalophora dioica) of the class 1'ara- 

 cei'halophora, the second clan of his Malacoxia. [Ni iunu.fi.] 



HKMIDACTYLUa [GKCKOTIDA] 



IIKMIONM-S. [Kgrm*.] 



HKMIPNE'USTES, a gei 

 Chalk-Marl. 



MKMIPODIUS. [TKTBAONID*.] 



HKMITTKKA (from r>rf, "lf, and rr f f6r, a wing), one of tho 

 orders of the class Irucctn. 



The order //. wi/.vrrt, according to the twelfth edition of tho 

 ' Systema Nature ' of Linmcus, contains insects wliich agree in hnviiiK 

 incomplete metamorphoses (that is, the larva and pu]>a both pone** 

 the power of locomotion, and bear a great resemblance to the perfect 

 insect), and also in having the superior wings generally coriaceous, 

 and the inferior membranous. Thus Linuicu* iin-lud. '! in this order 

 the Cockroache*, Locust*, Granhoppers, Bugs, Cicada, &c. Tho 

 lost-mentioned insect*, the Bugs and Cicadt, however differ very 

 materially from the former, inasmuch as they possess a suctorial 

 instead of a masticatory mouth ; and as these latter characters have 

 been considered of great importance by all the more modern entomo- 

 logists, the term lltmipttra has been restricted to such insects a* have 

 imperfect metamorphosis and a suctorial mouth. 



genus of Fossil Eckinodermata, from tho 



