Table 3.

Histochemical analysis of labellar trichomes

			Type of labellar trichome
Taxon	Accession no.	Type of trichome	Protein	Starch	Lipid
M. buchtienii Schltr.	KLD199813	s (3–4 cells)	–	–	–
M. jocunda Lehm. & Kraenzl.	S19990297	m	+	+	–
M. johniana Kraenzl.	MMA41	m	+	+	–
M. lilliputana D.E. Benn. & E.A. Christenson	S19980062	m	+	+	–
M. longissima Lindl.	S20010485	m	+	–	+
M. pseudoreichenheimiana Dodson	MMC16	s (2 cells)	+	–	*
M. reichenheimiana Endres & Rchb.f.	MMA50	s (2 cells)	+	–	*
M. cf. setigera Lindl.	S19980057	m (2–3 cells)	+	+	–
M. tenuis C. Schweinf.	KLD199923	s	+	+	–

Types of trichome: m = moniliform; s = simple.

+ and – indicate presence and absence, respectively, of food substance, whereas * indicates that the cell wall only selectively stained for this substance.