Expanding and subdividing the southern and south-tropical African Kalanchoe [subg. Kalanchoe] sect. Raveta (Crassulaceae subfam. Kalanchooideae): description of K. [sect. Raveta] ser. Raveta, K. [sect. Raveta] ser. Longiflorae, and K. [sect. Raveta] ser. Rotundifoliae Author Smith, Gideon F. text Phytotaxa 2024 2024-06-21 655 1 1 20 http://dx.doi.org/10.11646/phytotaxa.655.1.1 journal article 302921 10.11646/phytotaxa.655.1.1 8eb674e0-97cc-4d57-8717-91a9e7312eac 1179-3163 13217051

TABLE 2. Comparison of the vegetative and reproductive morphologies of the three series, Kalanchoe ser. Raveta, K. ser. Longiflorae, and K. ser. Rotundifoliae, recognised in K. sect. Raveta.

#	Organ	K. ser. Raveta	K. ser. Longiflorae	K. ser. Rotundifoliae
A.	Vegetative
1.	Growth form	Generally medium-sized to large, pseudo-rosulate plants with robust but often weak, leaning stems	Small to medium-sized, herbaceous shrublets with ‘hard’, erect to leaning stems	Low-growing, single-stemmed or multi-branched, herbaceous plants with thin, weak stems
2.	Plant size at reproductive maturity (m)	± 1.0(–2.5)	0.5–1.0(–1.5), rarely>2	± <1
3.	Stem in cross-section	Round or vertically ridged, but hardly angled	Distinctly angled; usually 4-, 5-, or 6-angled	Round
4.	Leaves (size; shape)	Large; round to obovate	Medium-sized; elliptic	Small; round to obovate
5.	Leaf margins	Entire	Crenate	Entire to crenate
6.	White-waxy farina	Present	Absent	Absent
B.	Reproductive
7.	Inflorescence (shape in outline)	Clavate	Diffuse	Diffuse
8.	Inflorescence (floral density)	Dense	Subdense	Sparse
9.	Flower disposition	Omnidirectional, erect to horizontal to ± pendent	Generally erect	Erect
10.	Flowers in outline	Variously elliptic	Gradually urceolate	Abruptly urceolate
11.	White-waxy farina	Present	Absent	Absent
12.	Corolla lobes (colour of adaxial surface)	Generally dull; whitish, to faded yellowish, to greenish, or to pinkish red	Bright yellow	Various shades of red, to orange, to yellow
13.	Corolla lobes (general shape)	Broadly elliptic	Often nearly round	Lanceolate-narrowed
14.	Nectar scales (shape)	Cuneiform square to transversely oblong	± Linear	± Linear
15.	Diurnal movement (closing at night)	Absent	± Absent	Present
16.	Corolla twisting post-anthesis	Absent	Absent	Present
17.	Production of plants on an inflorescence	Infrequent, but common in some species	Occasional	Infrequent, but common in some species
18.	Chromosome number	2 n = 34	2 n = 34	2 n = 34