240 Transactions of the Royal Society of South Africa. 
2-3 mm. longo, lobis abrupte-angustatis, apice recurvis, superne maculis 
fusco-purpureis tectis. Corona exterioris segmenta profunde bipartita, 
lobis acutis, valde arcuato-divergentibus. Coron^e interioris segmenta 
linearia antheris incumbentibus, arcuato-elongatis, apice baud divergen- 
tibus, basi longe-cornutis. 
Tbe plant is 2-3 in. high, nearly globose, the stems solitary or 2-3 from 
the same root ; the slightly raised tubercles of the surface are without 
bristles, greyish green ; the flowers appear at the apex, 1-3 from the same 
point, opening in succession. The tube of the corolla is shallow, cup- 
shaped, the segments are broadly ovate, abruptly and shortly acuminate, 
the points when the flower has just opened recurved, but later on suberect. 
The points are dark-maroon, while the base of the corolla-lobes and the 
visible portion of the tube are yellow, speckled with dark-maroon markings. 
The outer side is a dark claret. The outer corona is quite similar to that 
of T. cactiforme, the lobes of two neighbouring segments arching towards 
each other and forming a pair of mandibles. The inner corona, however, 
differs from that species by its elongated lobes, which reach to the level of 
the outward corona segments and also bear an anterior curved process, 
which stands between the two "mandibles," almost touching their tips. 
The size of the flowers varies according to the state of the plants, for in 
robust specimens they may be 10 mm. in diam., while in others they are 
only 6 mm. 
Found between weathering granite-boulders near Aus in German 
South-West Africa (alt. 1,400 m.) and flowering in my garden at Capetown 
in March, 1911. Marloth, No. 4874. 
A few years ago only one species of Trichocaulon without bristles was 
known, viz., T. cactiforme, but the Flora Capensis (vol. iv.. Part 1, page 
889, published in 1909) brought two others of this group, and shortly 
afterwards a third one, also sent to Kew by the writer, was named T. 
pictum ; hence within a few years the number of species of this section has 
risen from one to five. 
They are all very similar in habit, hence in order to facilitate their 
recognition I attach the following brief synopsis. 
A. Segments of outer corona bipartite, each segment 
being formed of 2 almost independent lobes. 
a. Inner corona-lobes not produced beyond the 
anthers I. T. cactiforme (Hook), N.E.Br. 
h. Inner corona-lobes produced beyond the anthers. 
1. Inner corona-lobes with a conspicuous anterior 
horn, standing between the segments of the 
outer corona 2. T, melofornie, Marl. 
2. Inner corona lobes without a dorsal 
appendage 3. T. Marlothii, ^.'E.Bt.* 
