Thesium .] 
LXXV. ARISTOLOCIIIACEA!. 
379 
Islands, Santalum Freycinetianum. As in the preceding nearly 
allied Order of Thymelace.*:, the bark is remarkably tough. 
1. Thesium Linn. Bastard-Toadflax. 
Perianth 4 — 5-cleft, persistent. Stamens wilh a small fascicle 
of hairs at their base. Stigma simple. Di-upe crowned with the 
persistent perianth. — Name: Oyoua were the games instituted 
in honour of Theseus , and a plant, used to form the crown 
then competed for, obtained the name Signiov , — but from 
Pliny’s description it was very different from ours. 
1. T. linophyllum. L. ( Lint-leaved B.); stems procumbent or 
ascending, leaves linear-lanceolate 1 -nerved, racemes simple or 
panicled leafy, peduncles and pedicels with 3 bracteas, pedicels 
usually as long as the flower spreading in fruit, their angles 
and the edges of the bracteas and upper leaves denticulate- 
scabrous, fruit oval-oblong. E. B. t. 247. T. humifusum 
DC. FI. Fr. T. divaricatum Jan.: A. DC. Prodr. 
Elevated chalky pastures, Cambridgeshire, Norfolk, and the south 
of England. h • 5 — 7. — A true parasite. Roots woody, sending 
forth several herbaceous, spreading, leafy stems, terminated by the 
somewhat panicled leafy racemes. Segments of the perianth white, in- 
volute. Stigma capitate. Fruit strongly ribbed longitudinally 
with 5 principal and 10 secondary nerves, scarcely reticulate. Al- 
though the names linophyllum and humifusum be applied to several 
different varieties and even distinct species, and although the culti- 
vated specimen first known to LinnEeus be now conjectured to be T. 
ramosum of Hayne, his synonyms indicate that he had this species prin- 
cipally in view : and therefore there seems no good reason for suppress- 
ing the name restricted to this species by Smith, and retaining the 
much more modern one of T. divuricatum, as proposed by Alphonse De 
Candolle; besides, T. ramosum agrees in too many points with T. lino- 
phyllum to be truly distinct. 
[2. T. * liumile Vahl (erect B .) ; stems erect branched from the 
base, leaves linear 1 -nerved fleshy, racemes spieate, flowers 
nearly sessile tribracteate. 
Near Dawlish, Devonshire: Mr. C. C. Buhington. Q or $ . 7, 
8. — We have seen no British specimen of this species ; Vahl’s plant 
was obtained from the north of Africa, and it is most unlikely to be 
indigenous to England. Fruit with 10 longitudinal ribs, and more or 
less distinctly reticulate with oblique veins.] 
Ord. LXXV. AltlSTOLOCIIIACEflE Juss. 
Perianth below adnate with the ovary, above free, campa- 
nulate or tubular, with a usually irregularly lobed and often 
dilated limb. Stumens 6 — 10 or 12, epigynous. Ovary 3 — 6- 
