MAY 4, 1923 CHASE: IDENTIFICATION OF RADDI’S GRASSES 169 
and description agree well with the photograph and notes taken of 
Raddi’s specimen. 
29. OLYRA PUBESCENS. “In montosis ubique in Provincia Rio 
Janeiro.” ‘There are two specimens of this, each consisting of a leafy 
branch with a panicle. The sheaths and blades are puberulent; other- 
wise the specimens are like O. latifolia L. Doell reduces it to a variety 
of that species, O. latifolia var. pubescens (Raddi) Doell. It is scarcely 
worthy of varietal rank. A specimen of typical O. latifolia L. is 
labeled “Olyra pubescens var.” in Raddi’s script. This is evidently 
the form referred to as having glabrous blades and sheaths. Nees? 
cites this as ‘‘Olyra pubescens var. glabra Raddi . . . . ” under 
Olyra scabra Nees as a doubtful synonym. 
In the Delessert Herbarium a specimen labeled “Olyra pubescens 
Raddi. Bresil: Raddi,’’ but not in Raddi’s script, is the same as © 
O. ciliatifolia Raddi (no. 31). 
30. OLYRA GLABERRIMA. ‘‘In Monte . . . . Corcovado.” 
The specimen consists of the summit of a culm with three leaves and an 
immature panicle. The blades are very large, the largest being 
26.5 em. long and 5.6 em. wide, short-petioled and with the base very 
unsymmetrical. The immature fertile lemma is densely bearded at 
the base and slightly at the summit with short thick hairs. Olyra 
semiovata Trin.,t “Brasil. (Langsdorff),”’ belongs to this species. 
Trinius’s description applies well to Raddi’s specimen, and a fragment 
from the Trinius Herbarium deposited in the United States National 
Herbarium shows an immature pistillate spikelet that agrees perfectly 
with that observed in the Raddi specimen. Raddi’s description, 
“Corolla laevigata, straminea, coriaceo-indurata”’ is misleading. 
The lemma and palea are yellow (being very immature, as is the im- 
mature one from Trinius’s specimen), but the dense pubescence at 
_ the base is to be seen by lifting up the sterile lemma. This character- 
istic fruit is well shown in Trinius’s drawing of O. semiovata.* This 
species is well represented by Jardim Botanico do Rio de Janeiro 
no. 402 (without data other than Brazil) and Ule 979, “Pr. St. Cath- 
arina, Brazil.” 
31. OLyRA cILIATIFoLIA. “In saltibus montosis, et sepibus prope 
Rio-Janeiro, nec non in Montibus estrell.”” The spec*men consists of 
two culms with immature panicles. The fruit shows the loose pubes- 
cence characteristic of the species as represented by Hitchcock 10138, 
3 Agrost. Bras. 307. 1829. 
4Gram. Pan. 249. 1826. 
5 Trin. Gram. Icon. 3: 347. 1836. 
