71 
CRASSULA, Linn., sect. TILLAEOIDEAE, SchOnl. 
oblique obovata multi-ovulata. Still breves. Squamae anguste 
obcuneatae apicem versus clilatatae truncatae. 
It seems that this plant has by Harvey been mixed with Crassula 
brevifolia (E. et Z.), Schonl. See re- 
marks in Journ. of Bot. xxxvi ( 1898 ), 
372. The two are, however, perfectly 
distinct. 
Branches 2 — 3 cm. long. Petioles 
2 — 4 mm., blades 1'5 — 3 mm. long. 
Pedicels ' 5 — 2 mm. long. Petals 15 mm. long. 
On the hills near Van Rhynsdorp, 100 m., Schlechter, 10994. 
Crassula umbellata, Thunb. in FI. Cap. ed. Schultes (1823), 279; DC. 
Prodr. ill, 389. (Plate vi, fig. 22.) 
Tillaea umbellata, Willd. Sp. pi. I, 271. 
Crassula alpina, Endl. in Walp. Rep. II, 253. 
Petrogeton alpinum, E. et Z. Enum. no. 1858, 291. 
Bulliarda alpina, Harv. in Harvey and Sonder, FI. Cap. II, 330. 
Crassula umbella, E. Mey. in Herb. Drege (ex Harvey). 
Annua, radix fibrosa tenuissima, caulis brevis simplex vel rarius 
ramosus tenuis glaber filiformis apice umbellifer. Folia radicalia 
aggregata subpetiolata obovato-spathulata vel flabelliformia papillosa 
obtusissima. Flores tetrameri vel rarius pentameri subumbellati 
plurimi ex apice caulis pedunculo brevi, pedicellis inaequalibus capil- 
laribus rectis. Calyx quam petala paullum brevior superne extus 
pubescens tubo brevi laciniis ovatis obtusissimus. Petala ovata obtusa 
incarnata. Filamenta subulata erecta longitudine laciniarum calycis. 
Antherae flavae ovatae. Ovaria ovata acuta 6-ovulata. Stili breves 
subulati. Squamae subspathulatae. 
Height 1 — 4 cm. Leaves 2 — 3 mm. long, 1 — 2 mm. broad. Petals 
about l'5mm. long. Pedicels 3 — 8 mm. long. 
Although the plant in a few particulars differs slightly from 
Thunberg’s description, there can be no reasonable doubt that the 
identification is correct and that Petrogeton alpinum, E. et Z. is 
identical with Crassula umbellata , Thunb. It flowers in August 
and September. 
Near the “ Kloof” on Table Mt., E. and Z. 1858 ; ledges of rock, 
Orange Kloof, Cape Peninsula, 1800 ft, Wolley Dod, 3366 ; dry sandy 
ground Betseta rock, Cape Peninsula, 500 ft, Wolley Dod, 3366 , damp 
places on top of Muizenberg Mt., Herb. Norm. Austr. Afr. 1150. 
In the two following the plant is somewhat larger than usual, and 
the stem dichotomously branched : Darling, Malmesbury distr., Bach 
