Cololejeunea grossepapillosa (Lejeuneaceae: Jungermanniopsida), an inconspicuous species new for New Zealand

Figures & data

Figure 1  Cololejeunea grossepapillosa. A, Ventral view of leaf. B, Dorsal view of leaf. C, Athecal vegetative branch. D, Stem sections. E, Ventral view of shoot. F, Ventral view of leaf showing gemma initial cells. G, Gemmae. H, Gemmaling. I, Dorsal view of leaf showing gemma initial cells, papillae omitted. Scale bar A–D, F–I: 100 µm; E: 250 µm.

Table 1  Characters comparing Cololejeunea grossepapillosa with known New Zealand species with which it could be confused.

Character	Cololejeunea mamillata	Cololejeunea hodgsoniae	Cololejeunea grossepapillosa
Lobe shape	Triangular	Ovate	Rotund
Lobe apex	Acute	Truncate to acute	Rounded
Leaf spacing	Imbricate	Imbricate	Widely remote
Lobule area (proportion of lobe area)	0.3–0.5×	0.25–0.4×	0.8×
Lobule carina region	Smooth	Papillose	Smooth
Lobule margin	Entire	Spinulose	Entire
Lobule teeth	First only	Nil	First and second
Lobule papilla	Marginal	Ental	Ental
Shoot width	300–600 µm	250–500 µm	250–280 µm
Branching	Thecal	Thecal	Athecal
Gemmae	Not seen	Discoidal	Discoidal

Figure 2  Worldwide distribution of Cololejeunea grossepapillosa, showing disjunction between eastern and southern Africa, Asia and New Zealand. Black dots represent the approximate location of known sightings and herbarium records. The two South Island records are reported here.

Table 2  Properties influencing dispersability for New Zealand Cololejeunea.

Species	Sexuality	Spore size (µm)	Asexual reproduction	Ecology	Climatic range
Cololejeunea appressa	Autoicous	?	Gemmae	Epiphyll	Tropical to warm temperate
Cololejeunea cardiocarpa	Autoicous paroicous	?	Gemmae	Opportunist	Tropical to warm temperate
Cololejeunea floccosa	Autoicous	?	Gemmae	Opportunist	Tropical to warm temperate
Cololejeunea grossepapillosa	Autoicous	?	Gemmae	Epiphyll or epimuscicol	Tropical to cool temperate
Cololejeunea mamillata	Autoicous	?	Nil	Epiphyll or epimuscicol	Tropical to warm temperate
Cololejeunea minutissima	Autoicous	c. 17	Gemmae	Twig and bark colonizer	Tropical to cool temperate
Cololejeunea cucullifolia	Autoicous	?	Gemmae	Twig and bark colonizer	Warm temperate
Cololejeunea ellipsoidea	Unknown	?	Unknown	Unknown	Unknown
Cololejeunea falcidentata	Unknown	?	Unknown	Unknown	Unknown
Cololejeunea hodgsoniae	Autoicous	?	Nil	Epimuscicol	Warm temperate to cool temperate
Cololejeunea inflexifolia	Autoicous	?	Gemmae	Twig and bark colonizer	Cool temperate
Cololejeunea laevigata	Autoicous	?	Gemmae	Epiphyll	Warm to cool temperate
Cololejeunea pulchella	Autoicous	?	Gemmae	Epiphyll	Warm to cool temperate