Lagascalia 18(2), 1996 281 Although there are substantial

Lagascalia
281
18(2), 1996
Although there are substantial phytochemical differences
reported
(RASMUSSEN & al., 1 9 8 1 ; CHRISTENSEN & al., 1 9 8 4 ; SMITT & CHRISTENSEN,
1 9 9 1 ; SMITT & al., 1 9 9 5 ; JÄGER & a l . , 1 9 9 5 ) , morphological differences are
m u c h l e s s d r a m a t i c . Thapsia
transtagana
u s u a l l y h a s l e a v e s d i s t i n c t l y hairy,
especially on the petiole and nerves and the lobes are broader 3 - 1 0 ( - 1 5 ) m m
( a s c o m p a r e d w i t h 1-5 in T. garganica).
There are also t w o resin
canals
a s s o c i a t e d with e a c h v a s c u l a r b u n d l e , o n e o n t h e o u t e r a n d a n o t h e r o n t h e i n n e r
s i d e (T. garganica
has only the outer resin canals).
R e c e n t l y , a n o t h e r s p e c i e s h a s b e e n d e s c r i b e d , T. gymnesica
by PUJADAS &
al. ( 1 9 9 1 ) , b u t this is r e s t r i c t e d t o s m a l l p o p u l a t i o n s in t h e B a l e a r i c I s l a n d s a n d
a p p e a r s t o b e i n t e r m e d i a t e b e t w e e n T. villosa
a n d T.
garganica.
REFERENCES
BROTERO, F.A. (1804) Flora Lusitanica.
Olisipone.
CHRISTENSEN, S.B., E. N O R U P , U. R A S M U S S E N & J . 0 . M A D S E N (1984) Structure of
histamine releasing guaianolides from Thapsia
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GARCÍA MARTÍN, F. (1987) Thapsia
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2 3 : 1659-
L . in B. V A L D É S , S. TALAVERA & E. FERNÁNDEZ-
GALIANO (eds). Flora vascular de Andalucía Occidental 2 : 327-329. Ketres Edito­
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LAGASCA, M . (1816) Genera et Species Plantarum. Matriti, ex Typographia Regia.
L A N G E , J. (1880) Fam. 9 6 . Umbelliferae J u s s . in M. W I L L K O M M & J. L A N G E (eds.)
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PUJADAS, A., J.A. ROSELLÓ & P. BARCELÓ (1991) De flora baleárica adnotationes (10).
Thapsia gymnesica
Spec. nov. Candollea
4 6 : 65-74.
RASMUSSEN, U., S.B. CHRISTENSEN & F. SANDBERG (1981) Phytochemistry of the genus
Thapsia. Planta Medica 4 3 : 336-341.
SMITT, U . W . & S.B. CHRISTENSEN (1991) Nortrilobolid, a new potent guaianolide
secretagogue from Thapsia garganica. Planta Medica 5 7 : 196-197.
, J Ä G E R , A. K, A. A D S E R S E N & L . G U D I K S E N ( 1 9 9 5 ) C o m p a r a t i v e s t u d i e s in
phytochemistry and fruit anatomy of Thapsia garganica and T. transtagana, Apiaceae
(Umbelliferae). Bot. J. Linn. Soc. 1 1 7 : 281-292.
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