The rarer species of _Poa_ are _P. bulbosa_ with the stems swollen below; _P. alpina_, also slightly bulbous and often viviparous; _P. laxa_ an allied Highland species; and _P. distans_ a maritime form allied to _P. maritima_ (see p. 111). ** Spikelets with awns or with sharp terminal points (awn-points) to the glumes or paleæ. In some species and varieties of _Festuca_ awns are not evident (see p. 116): the hard paleæ simply end in acute or acuminate points, but these are sharp and in most cases much more so than in any _Poa_. When not so evident, the student will probably think the specimen is a _Poa_ and the flora must be consulted. The difficulty is most likely to occur with varieties of _F. ovina_ and _F. elatior_: in the former the leaves are narrower, setaceous and stiffer than in any _Poa_. The ribbing of the leaf, the ligule, and other characters of the vegetative organs (see pp. 45 and 50) will help in these doubtful cases. † Awns terminal, or sub-terminal; often very short or nearly obsolete and the paleæ merely drawn out at the tips to a hard sharp awn-point. ⊙ _Awns long and sub-terminal, inserted between the teeth of the cleft apex of the paleæ. Sheaths entire. Panicle usually nodding._ +Bromus.+ With the exception of _Festuca Myurus_ and one or two other rare Fescues with setaceous leaves, _Hordeum_ and _Brachypodium_ are the only other genera with awns much resembling the Bromes. The former has a totally different inflorescence, and in the latter the spikelets are practically sessile (see p. 107). ≡ _Spikelets short and fat, and relatively heavy. Paleæ broad and distinctly nerved. Awns fine, about as long as the paleæ._ _B. arvensis_, L. There are several varieties, of which _B. secalinus_ with a looser panicle, and _B. mollis_ with a more compact panicle and very downy, are the chief. ≡≡ _Spikelets lanceolate and with conspicuous awns. Nerves on the paleæ obsolete._ _x Panicle conspicuously loose and drooping and awns long, paleæ narrow and elongated._ _z Sheaths with long often reflexed hairs. A shade-grass over three feet high._ _B. asper_, Mull. _zz Sheaths downy. A weed of open lands and hedges, two feet or less._ _B. sterilis_, L. _B. giganteus_ is rarer than _B. asper_ and has smaller spikelets and more slender awns. _B. maximus_ and _B. madritensis_ are rare. ⊙⊙ _Awns, if present, merely the points of the paleæ, very short or obsolete. Sheaths split: ligule short._ +Festuca.+