I PODALES. 1 



M VRSILE \> 





Delile has published an tu nt of the germination "i I 



appears thai it-> sporulea sprout upwards and downwards, forn 



body, which ultimate l.\ becomes the stem, or conn ; butil is not stab •! win th 



from which thi ascending and descending axed take then rm. lu I 



Mr. Valentine finds, that germination takes place invariably fr :i fixed | 



points oul the great affinity that exists betv I and Lycopodium, : 



in tlie relative position of the two kinds "I reproductive matter. I ■ 

 the pulvorulenl spon cases occupy the upper ends of the shoots, and tin granu 

 cases tlie lower parts : while, i mer are found in tin 



latter at the circumference. If tliin comparison i^ g I. it will afford 



tlie identity '>t' nature "i tliese bodii -, and that tlie pulverulent ■ ■■•.i 



anthers, as has been supposed ; for in Isoetcs tlie pulverulent inner < 



same organization, even to the present t' what has been called their bi 



outer granular ones ; bo that, il Isoetes has sexes, ii «ill offer tlie si 

 anther having a stigma. The anatomy ol I oetea is described bj Mobl in the / 

 \n. 181. 

 The Pepperworta evidently approach the Clubmos es through I vhichisE 



times referri 'I t<> the I jomi times t.i the oth( r. 'I I" ii 



1 i bi ing tin i' i into contact « itii Jung< rmannii ■■< bb. According t'> Mr. Griffith, '• 

 evident!) appears to conned Salvima with Perns; u its important diffei 

 'x i ■ i i: t consist in the capsules, which correspond to tlie secondary <•:., I thai family, 



I p. in:; developed within the substance of ;i modified leaf, in their occurring mixed with 



each other, and in the Bpores of the pedicellate capsules not 1 miing imb< 



apparently cellular ma- 

 All are inhabitants of ditches or inundated places They do not appearto I 

 b) climate o much ne by situation, wherefore the) have l" i n d< t. ct< d in vari > ;. 

 of Europe, \ ^ia, Africa, and America ; ol i i< Wy bowi v< r in temperate latitudes. 



Uses imkiiiiu n. 



i i. linn, 



Marsilea, Linn. 



i , in i, i 



, ■ vciawkia, Neck, 



GENERA. 

 Asi 11a, Lam. 



i ■ . Raf. 



Rhizotf* i a a, Mi ■>. d. 

 Salvinia, Michel. 



1 • .' 

 Calamaria, I 'ill. 



Ni vi i rs. i ii v 5. Sp. 24. 



Post i ion.— Lycopodiai 



Mai:.-ii i.m i: r 



ungermann 



with hairs; I • thi top; mature reprodi 



the all a pea Ith brown rLiil !:air-. I be upper ones ol • icl 



I situation,) contain Innumerable spba?rica ' : hcolourai 



lurface, tei minuting • BpiUarj Bunple Ulamenl again contain a solid whitish 0| 



other, which occupies the lowest part <'t the cao me, and which is thi I 



containing 6-18 larger, oblong-ovat< bodies, on ii rl 

 colour brown, surface also reticulated. Bach contains a hu 



chalky aspect : it is three lobed at the api \. and contains bi l"» t hi- a cavity fined l j 

 . tilled "itli granular and viscid matter and oil) 



mil. i. — The growing points present a number of minute ci 

 which at certain periods ma] be seen passing Into the foramen, I 

 .. Ithin the cavltj of that bi 

 the stem and bnu above the .>tla-r, concealed in a membran 



oblong-ovate, with a conspicuous I and nucleus, around the b 



i] sules "i each pair either dlfform- in which case the l"»' I 

 or both "f eith< i kind, 

 .»f ii,.- foramen, and still enclosed in the Involucrum ; uppi • 



y circumcision ; with the apex scj contents,* 



mccont a tine membrane, tlie remains of the nucleus or tin 



nular lurid, and surmount* d b) 

 sii^lith to tli i ilyptra; on tlio surface ol the Hbrou I 



, whirh when pulled awav, separati «i oftherlbi 



radicles. 1 1 e lolv 



these • In oumbi r, spherical, attached 



receptacle ; each contains two <■> I 

 radiciform ] I as. In their substance ma) 



