275 PODOSTEMACEAE: DE GEOGRAPHIA, USU etc. TABULARUM EXPLICATIO. 276 
parandis cibis utuntur. Dodrantem enim salis puri cinis 
iste continet, qui chemicam analysin apud Anglos nu- 
per subiit. Sal facillime in aqua frigida liquefit, po- 
steaque ex eadem expurgata et in vapores soluta solus 
elieitur. Ex alkalia potassica sodicaque cum chloro 
pro maxima parie, pro minima autem cum acido саг- 
bonico et sulphurico coalitis fabricatur, nec mirum 
propterea cur salis marini vices in arte culinaria apud 
barbaros agere queat. Jodinae expers est. Ceterum 
ne verba chemistarum male fortassis interpretatus sim, 
ea ipsa tradere expedit. „Тһе saline ash, ait cl. 
Graves, which is said (o be used by the Indians (of 
British Guyana) as a substitute for salt, is in black 
pulverulent masses (in tha state we have it). The salt 
is very easily obtained from the ash by treating it 
with eold water, and evaporating the solution to dry- 
ness, Seventy-five per cent of soluble saline matter 
may thus be extracted, the insoluble residua consi- 
sting of carbon, siliceous matter, carbonate of lime, 
and insoluble phosphates, in the following porportions: 
Carbonaceous matter . . . + + o © © 9l. 
Ашен matter . s o s ..».... а 
Carbonate of lime and insoluble phosphates 24.8, 
The salts soluble in water were found to con- 
sist of chlorides of potassium and sodium, together with 
a portion of alkaline-carbonate aud a small quautity 
of sulphate. It was tested for jodine, but there was 
none found. 100 grains of the dry salt gave: 
Sulphuric acid . + + © + • 1.0 grs. 
Carbonle atid. ....... 14 
Chori 1, . +» < < < 45.648 
Now assuming the sulphuric et carbonic acids to 
be in combination with potash, we should have 84 
grains of the chlorides of potassium et sodium; and 
as those contain 45.648 grains of chlorine, we may 
deduce the following composition of the salt by cal- 
culation: 
Sulphate of potash . . • . . . 2.18 
Carbonate of potash . . . . . 13.82 
Chloride of potassium . . . + . 33.6 
Chloride of sodium . . . . . . 50.4 
100.00. 
From the above results, it will be perceived that 
the peculiarity of tliis vegetable ash consists in the 
large amount of chlorides contained in it, which very 
well adapt il for the purpose 40 which it is applied, 
and render it a tolerably good substitute for that 
essential substance, common salt.^ (Conf. Hooker's 
Journal of Botany and Kew garden Miscell. VI. 190 
(Junio 1854.) et Pharmaceutical Journ. XI.). Ci- 
nerem de quo agitur certo e Podostemaceis combustis 
ab Indis Americae tropicae comparari, clarissimi via- 
tores Rob. Schomburgk et Rich. Spruce comperti sunt. 
(Conf. op. cit. Hoockeri, loc. laud.,, et Lindleyi The 
Veget. Kingd. 483.) 
TABULARUM PODOSTEMACEARUM EXPLICATIO. 
Tab, LX ХШ. Fig. I. Гасіѕ monadelpha р. 238. 
II, Lonchostephus elegans p. 289, 
Ш, Ligea alcicornis р. 243. 
IV. Lophogyne helicandra p. 249. 
У. Mourera Weddelliana р. 236. 
Tab, LXXIV, Fig. I. Dicraea Erythrolichen p. 253. 
II, Podostemon Chamissois р. 255. 
Ш. Monostylis capillacea p. 251. 
IV. Mniopsis Weddelliana p. 258. 
V. Rhyncholacis linearis p. 241. 
Tab. LXXV, Fig. I. Аріпаріа Riedelii p. 246. 
П. Apinagia divaricata p. 245. 
MI. Oserya flabellifera p. 259, 
IV. Devillea flagelliformis p. 262. 
V. Tristicha hypnoides p. 272. 
Tab. LXXVI. Fig. l. Castelnavia fimbriata p. 265. 
II. Castelnavia monandra р. 268, | 
III. Castelnavia fruticulosa p. 270. 
IV. Castelnavia princeps p. 264. 
V. Castelnavia serpens p. 267. 
Icones, paucis exceptis, Parisiis delineavit Car. Tulasne, D. M., ann. 1848 et 1853. 
Siglae. 
. Planta magnitudine naturali delineata. 
. Ejusdem portiuncula (forifera) aucta (+). 
‚ Fragmentulum (auctum) racemi dimidiati. 
. Alabastrum, 
- Flos virgineus, vagina spoliatus. 
. Flos nuptiarum tempore depictus (vagina integra vel laceraia). 
. Idem evaginatus v. arte nudatus. 
. Flos involucratus, connubiis perfectis. 
- Vagina (spatha, involucrum) seorsim delineata. 
10. Androeceum integrum. 
11. Stamen ab antica facie spectatum. 
13, Granula pollinica summopere aucta. 
14. Ovarium andróeceo stipatum. 15, Idem, androeceo lacerato, amoto, 
16. Germen gravidum, involucratum. 
17. Fractus immaturus, nudatus, androeceo effeto у. partim destructo, 
Qo OQ @ чь ем ~ 
12. ldem a tergo visum. 
18. Capsula matura, integra: 4. a latere commissuram valvarum exhi- 
bente visa. Ё. a tergo alterutrius valvae spectata. 
19. Capsula dehiscens. 
20. Capsula effeta, androecei reliquiis stipata. 
major, persistens post semina eruciata. 
21. Placenta sejuncta, paucis seminibus onusta, aut plane nudata: f. afa- 
cie latiore s. seminifera spectata. m. a latere angustiore s. septifero. 
22. Semen madidum (maturum). 22a. Semen immaturum. 
33. Testa lacerata, seorsim depicta. 
24. Embryo tegmina exuens. 
25. ldem omni tegumento nudatus: £. a tergo alterutrius cotyledonis 
spectatus; c. a latere comimissuram cotyledonum monstrante. 
26. Folii fragmentum sub microscopio inspectum, 
27. Frondis flores foventis sectio longitudinalis. 
D. Diagramma floris. 
20a. Capsulae valva . 
